Dr. David G. Hwang, MD

  • San Francisco, CA
  • Ophthalmologist
NPI1346292224PAC ID3072542265
Medicare services, 2024
1,261
Medicare patients, 2024
455
Part D claims, 2024
1,690
Publications
48
MIPS score, 2024
87
Practice address
505 Parnassus Ave, Box 0296, San Francisco, CA 94143
Practice phone
Call (415) 353-2733
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

UCSF Helen Diller Medical Center at Parnassus Heights

Hospital · San Francisco, California

See all 9 affiliations

Find Dr. Hwang's professional email, personal email and mobile number

Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.

View contacts for free

Dr. David G. Hwang is an ophthalmologist in San Francisco, California

Dr. Hwang practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health.

Dr. Hwang's NPI, 1346292224, was assigned on May 17, 2006. Dr. Hwang graduated from UCSF School of Medicine in 1984. Dr. Hwang's California license number on file is G56748.

NPI and contact details
Medicare PAC ID
3072542265
NPI enumeration date
May 17, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(415) 353-2733
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
68
Medical school graduation
1984

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. David G. Hwang practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California

Dr. Hwang's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights, at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143 in San Francisco County. The practice phone is (415) 353-2733.

Source: Dmand AI Affiliation Data

Dr. David G. Hwang is affiliated with 5 sites of care and 4 medical groups

Dr. Hwang's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Hwang to 4 more group practices and clinics and 3 medical groups, each named with a free account.

See all 9 affiliations for Dr. Hwang

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. David G. Hwang's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hwang practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSF Helen Diller Medical Center at Parnassus HeightsAvailable with a free account
+4 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Hwang practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across University of California Health and 6.2K+ hospitals, with verified contacts in the same login.

Dr. David G. Hwang is one of 2,621 ophthalmologists in California

Ophthalmology is Dr. Hwang's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Hwang is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Hwang has a license on file in California.

Specialties and state licenses

  • Ophthalmology, CaliforniaPrimaryLicense G56748 · 1986 to 2025 · taxonomy 207W00000X

Clinical focus

Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, cold sores or genital herpes, dry eye, eye infection or inflammation, glaucoma and glaucoma surgery among the conditions Dr. Hwang treats.

Ophthalmologists near Dr. Hwang

Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. David G. Hwang billed Medicare for 1,261 services in 2024

CMS data shows 1,261 Medicare services from Dr. Hwang across 13 procedure codes in 2024, for 455 Medicare patients. Medicare paid $149,815 for them.

Medicare services, 20241,261
Medicare patients455
Paid by Medicare$149,815
Procedure codes13

Dr. Hwang's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 5312024: 5677%
Tests and treatments
2023: 4282024: 30728%
Imaging
2023: 3372024: 23530%
Surgery
2023: 1802024: 15216%
Other services
2023: 192024: 0100%

Where Dr. Hwang's Medicare services took place, 2024

  • In an office47938%
  • In a facility78262%

Dr. Hwang compared with the California median for ophthalmologists, 2024

  • Dr. Hwang
  • California median
Medicare services
1,261vs 1,07917% above
Medicare patients
455vs 4218% above
Part D claims
1,549vs 6182.5 times

Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.

Dr. Hwang's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Hwang

Need commercial claims for Dr. Hwang?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hwang and other ophthalmologists in California.

Book a meeting

Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. David G. Hwang treated 455 Medicare patients in 2024, average age 77

CMS counts 455 Medicare patients who saw Dr. Hwang in 2024. The largest group is 75 to 84, with 211 patients. 74% of them have high cholesterol, and 65% have high blood pressure. 16% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Hwang's median patient age at 77, with 57% women.

Medicare patients, 2024455
Average age77
Average risk score0.99
Also on Medicaid16%

Dr. Hwang's Medicare patients by age, 2024

Dr. Hwang's Medicare patients by sex, 2024

  • Women26358%
  • Men19242%

Chronic conditions among Dr. Hwang's Medicare patients, 2024

  1. High cholesterol74%
  2. High blood pressure65%
  3. Arthritis40%
  4. Osteoporosis23%
  5. Diabetes22%
  6. Chronic kidney disease20%
  7. Ischemic heart disease18%
  8. Atrial fibrillation16%

Share of Medicare patients with each condition. A patient can have several.

Dr. Hwang's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 77

Patient panel by sex, all payers

  • Women57%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. David G. Hwang wrote 1,690 Medicare Part D claims in 2024

In 2024, Dr. Hwang wrote 1,690 Medicare Part D claims for 332 patients. 54% of them were for generic drugs. CMS names the drug for 1,549 of them, across 16 drugs with 11 or more claims each, at $83,033 in total drug cost. In 2023, CMS named 1,907 claims across 20 drugs.

Part D claims, 20241,690
Drugs named by CMS16
Total drug cost$83,033
Part D patients332

Dr. Hwang's Part D claims by kind of drug, 2024

  • Generic913 claims54%
  • Brand-name777 claims46%

Dr. Hwang's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,9072024: 1,54919%

Drugs named by CMS: 16 in 2024, 20 in 2023.

See all prescribing by Dr. Hwang

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. David G. Hwang scored 87 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Hwang for performance year 2024, reported as part of a group. Dr. Hwang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 77 procedures of cataract surgery by Dr. Hwang, more than 70% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Hwang's MIPS scores, performance year 2024

  • 87of 100Final score
  • 86.8of 100Quality
  • 40of 100Improvement Activities
  • 70of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Hwang ranks in Medicare procedure volume

Cataract surgery
70th percentile77 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

For MedTech and pharma teams

Find ophthalmologists like Dr. Hwang by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. David G. Hwang has 48 publications on record

Dmand AI links 48 papers to Dr. Hwang, published from 2006 to 2024. 2012 was the busiest year, with 2. The most frequent topics are Cornea, Corneal Stroma and Keratitis. Dr. Hwang has published most often in Am J Ophthalmol. Dr. Hwang's most frequent co-authors are Matilda F. Chan, MD, PhD, Jennifer Ruth Rose-Nussbaumer, MD and Frank Lewis Brodie, MD.

Papers48
Years published2006 to 2024

Dr. Hwang's papers by year, 2006 to 2024

Topics Dr. Hwang writes about most

  • Cornea
  • Corneal Stroma
  • Keratitis
  • Keratomileusis, Laser In Situ
  • Endothelium, Corneal
  • Visual Acuity
  • Corneal Neovascularization
  • Keratoplasty, Penetrating

Dr. Hwang's most frequent co-authors

Recent publications by Dr. Hwang

See all 48 publications and co-authors

See who Dr. Hwang researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hwang works with, so you can find a warm path to the right ophthalmologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. David G. Hwang received $39,944 in industry payments from 2016 to 2023

CMS Open Payments shows 22 general payments to Dr. Hwang from 4 drug and device companies from 2016 to 2023. Consulting fees make up the largest share, 81% of the total. Shire North American Group Inc paid the most, $39,591.

General payments to Dr. Hwang by program year, 2016 to 2023

General payments to Dr. Hwang by kind, 2016 to 2023

$39.9Kin total
  • Consulting fees$32,51381%
  • Speaker and faculty fees$5,95015%
  • Travel and lodging$9102%
  • Food and beverage$5721%

Companies that paid Dr. Hwang the most, 2016 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Hwang

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. David G. Hwang has 4 awards and honors on record

Dmand AI lists 4 awards for Dr. Hwang, most recently Regional Top Doctor in 2014.

Awards and honors for Dr. Hwang

  1. 2014
    • Regional Top Doctor
  2. 2013
    • CMS Stage 1 EHR
  3. Undated
    • America's Best Doctors
    • Super Doc

Source: Dmand AI Professional Profile Data

Dr. David G. Hwang graduated from UCSF School of Medicine

Dr. Hwang graduated from UCSF School of Medicine in 1984.

  1. Medical schoolUCSF School of Medicine
  2. Board certified in ophthalmologyAmerican Board of Ophthalmology

Source: Dmand AI Professional Profile Data

Dr. David G. Hwang accepts plans from 11 insurance carriers

Dr. Hwang is in network with 11 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Excellus BlueCross BlueShield
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • United Healthcare
  • +3 more carriersWith a free account

Plan types Dr. Hwang accepts, by number of carriers

  1. Medicare10
  2. PPO8
  3. EPO4
  4. HMO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. David G. Hwang's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. David G. Hwang

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. David G. Hwang's NPI number?

Dr. David G. Hwang's NPI number is 1346292224. It was assigned on May 17, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. David G. Hwang?

Dr. David G. Hwang is an ophthalmologist in San Francisco, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).

Where does Dr. David G. Hwang practice?

Dr. Hwang practices at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143. Dr. Hwang's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. Dmand AI also links Dr. Hwang to 4 group practices and clinics and 3 medical groups.

What is Dr. David G. Hwang's office phone number?

The practice phone on file for Dr. Hwang is (415) 353-2733.

What is Dr. David G. Hwang's medical license number?

Dr. Hwang's California license number on file is G56748.

Which hospitals is Dr. David G. Hwang affiliated with?

Dr. Hwang practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California.

What medical group is Dr. David G. Hwang part of?

Dr. Hwang is linked to UCSF Pediatrics. Dmand AI links Dr. Hwang to 3 more medical groups.

Does Dr. David G. Hwang accept Medicare?

Yes. CMS data shows Dr. Hwang billed Medicare for 1,261 services in 2024, and Dr. Hwang accepts Medicare assignment.

What is Dr. David G. Hwang's MIPS score?

Dr. Hwang's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.

How many Medicare patients does Dr. David G. Hwang see?

CMS counts 455 Medicare patients who saw Dr. Hwang in 2024, with an average age of 77.

Show 9 more questionsShow fewer questions

Is Dr. David G. Hwang board certified?

Yes. Dr. Hwang is board certified in ophthalmology by the American Board of Ophthalmology.

What services does Dr. David G. Hwang bill to Medicare?

In 2024, Dr. Hwang's most billed Medicare services were office visit, established patient (99214), ultrasound (76514) and office visit, established patient (99215).

Where did Dr. David G. Hwang go to medical school?

Dr. Hwang graduated from UCSF School of Medicine in 1984.

What drugs does Dr. David G. Hwang prescribe most?

In 2024 Medicare Part D data, Dr. Hwang's most prescribed drugs by claims were Prednisolone Acetate, Fluorometholone and Latanoprost.

Has Dr. David G. Hwang received payments from drug or device companies?

CMS Open Payments shows $39,944 in general payments to Dr. Hwang from 4 companies from 2016 to 2023. The largest total came from Shire North American Group Inc.

How long has Dr. David G. Hwang been practicing?

Dr. Hwang graduated from medical school in 1984, 42 years ago.

Does Dr. David G. Hwang do research?

Dmand AI links 48 publications to Dr. Hwang, published from 2006 to 2024.

Who does Dr. David G. Hwang publish with?

Dr. Hwang's most frequent co-authors are Matilda F. Chan, MD, PhD (4 shared papers), Jennifer Ruth Rose-Nussbaumer, MD (3 shared papers) and Frank Lewis Brodie, MD (2 shared papers).

What insurance does Dr. David G. Hwang accept?

Dr. Hwang is in network with 11 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.

Selling to ophthalmology practices?

See ophthalmologists in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)