Dr. John Hwang, MD
- Medicare services, 2021
- 271
- Part D claims, 2024
- 59
- Hospital affiliations
- 3
- Industry payments
- $15,992
- Medical groups
- 2
- Practice address
- 275 Collier NW Rd, Atlanta, GA 30309
- Practice phone
- Call (770) 801-2500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Piedmont Physicians of Mountainside
Atlanta, Georgia
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.
Dr. John Hwang is a general surgeon in Atlanta, Georgia
Dr. Hwang practices at Piedmont Physicians of Mountainside in Atlanta, Georgia.
Dr. Hwang's NPI, 1386957728, was assigned on July 14, 2010. Dr. Hwang graduated from Tufts University School of Medicine in 2010. Dr. Hwang holds Georgia license 102028.
- NPI
- 1386957728NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901110063
- NPI enumeration date
- July 14, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (770) 801-2500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Hwang practices at Piedmont Physicians of Mountainside in Atlanta, Georgia
Dr. Hwang's primary practice is Piedmont Physicians of Mountainside, at 275 Collier NW Rd, Atlanta, GA 30309 in Fulton County. The practice phone is (770) 801-2500.
- Piedmont Physicians of Mountainside275 Collier NW Rd, Atlanta, GA 30309 · Fulton CountyPhone(770) 801-2500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Hwang is affiliated with 5 sites of care and 2 medical groups
Dr. Hwang's primary practice is Piedmont Physicians of Mountainside in Atlanta, Georgia. Dr. Hwang is also affiliated with AdventHealth Redmond. The medical group on file is Piedmont Physicians Obstetrics and Gynecology of Jasper. Dmand AI also links Dr. Hwang to 2 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Hwang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hwang practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Piedmont Physicians of Mountainside | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Hwang is one of 853 general surgeons in Georgia
Surgery is Dr. Hwang's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Hwang's licenses on file in 3 states: Georgia, Massachusetts and Washington.
Specialties and state licenses
- Surgery, GeorgiaPrimary
- Massachusetts license
- Washington license
General surgeons near Dr. Hwang
Counts of general surgeons 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. John Hwang billed Medicare for 271 services in 2021
CMS data shows 271 Medicare services from Dr. Hwang across 10 procedure codes in 2021. Medicare paid $36,060 for them.
Dr. Hwang's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 1452021: 23763%
- Surgery
- 2020: 112021: 34209%
Where Dr. Hwang's Medicare services took place, 2021
- In an office12747%
- In a facility14453%
Dr. Hwang compared with the Georgia median for general surgeons, 2021
- Dr. Hwang
- Georgia median
- Medicare services
- 271vs 15081% above
- Part D claims
- 35vs 5435% below
Medians across 789 general surgeons in Georgia with Dmand AI profiles that report each measure.
Dr. Hwang's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hwang and other general surgeons in Georgia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Hwang's patients have a median age of 57
Across all payers, Dmand AI patient panel data puts Dr. Hwang's median patient age at 57, with 52% women.
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 57
Patient panel by sex, all payers
- Women52%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. John Hwang wrote 59 Medicare Part D claims in 2024
In 2024, Dr. Hwang wrote 59 Medicare Part D claims for 38 patients. 98% of them were for generic drugs. CMS names the drug for 35 of them, across 1 drug with 11 or more claims each, at $231 in total drug cost. In 2023, CMS named 15 claims across 1 drug.
Dr. Hwang's Part D claims by kind of drug, 2024
- Generic58 claims98%
- Brand-name and other1 claims2%
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.
Drug classes CMS tracks in Dr. Hwang's Part D claims, 2024
- Opioids61%36 of 59 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 152024: 35133%
Drugs named by CMS: 1 in 2024, 1 in 2023.
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
How Dr. John Hwang takes part in Medicare
Dr. Hwang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Hwang received $15,992 in industry payments from 2016 to 2023
CMS Open Payments shows 49 general payments to Dr. Hwang from 11 drug and device companies from 2016 to 2023. Education make up the largest share, 56% of the total. Intuitive Surgical, Inc. paid the most, $10,449.
General payments to Dr. Hwang by program year, 2016 to 2023
General payments to Dr. Hwang by kind, 2016 to 2023
- Education$9,00056%
- Travel and lodging$4,34527%
- Food and beverage$1,52210%
- Speaker and faculty fees$1,1257%
Companies that paid Dr. Hwang the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Hwang graduated from Tufts University School of Medicine
Dr. Hwang graduated from Tufts University School of Medicine in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Hwang's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John 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. John Hwang's NPI number?
Dr. John Hwang's NPI number is 1386957728. It was assigned on July 14, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. John Hwang?
Dr. John Hwang is a general surgeon in Atlanta, Georgia. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John Hwang practice?
Dr. Hwang practices at 275 Collier NW Rd, Atlanta, GA 30309. Dr. Hwang's primary practice is Piedmont Physicians of Mountainside in Atlanta, Georgia. Dmand AI also links Dr. Hwang to 2 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. John Hwang's office phone number?
The practice phone on file for Dr. Hwang is (770) 801-2500.
What is Dr. John Hwang's medical license number?
Dr. Hwang holds Georgia license 102028, one of the licenses on file in 3 states.
Which states has Dr. John Hwang been licensed in?
Dmand AI has state licenses on file for Dr. Hwang in Georgia, Massachusetts and Washington.
Which hospitals is Dr. John Hwang affiliated with?
Dr. Hwang is affiliated with AdventHealth Redmond. Dmand AI links Dr. Hwang to 2 more hospitals.
What medical group is Dr. John Hwang part of?
Dr. Hwang is linked to Piedmont Physicians Obstetrics and Gynecology of Jasper. Dmand AI links Dr. Hwang to 1 more medical group.
Does Dr. John Hwang accept Medicare?
Yes. CMS data shows Dr. Hwang billed Medicare for 271 services in 2021, and Dr. Hwang accepts Medicare assignment.
What services does Dr. John Hwang bill to Medicare?
In 2021, Dr. Hwang's most billed Medicare services were office visit, new patient (99204), hospital inpatient care (99232) and office visit, established patient (99213).
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Where did Dr. John Hwang go to medical school?
Dr. Hwang graduated from Tufts University School of Medicine in 2010.
What drugs does Dr. John Hwang prescribe most?
In 2024 Medicare Part D data, Dr. Hwang's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. John Hwang received payments from drug or device companies?
CMS Open Payments shows $15,992 in general payments to Dr. Hwang from 11 companies from 2016 to 2023. The largest total came from Intuitive Surgical, Inc.
How long has Dr. John Hwang been practicing?
Dr. Hwang graduated from medical school in 2010, 16 years ago.
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