Dr. John W. Hann, MD
- Medicare services, 2024
- 200
- Medicare patients, 2024
- 62
- Part D claims, 2024
- 77
- MIPS score, 2024
- 100
- Hospital affiliations
- 1
- Practice address
- 800 North Main Street, Santa Ana, CA 92701
- Practice phone
- Call (714) 456-6270
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCI Health Family Health Center - Santa Ana
FQHC - Main Site · Santa Ana, California
Find Dr. Hann'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 W. Hann is a hospitalist in Santa Ana, California
Dr. Hann practices at UCI Health Family Health Center - Santa Ana in Santa Ana, California.
Dr. Hann's NPI, 1689968224, was assigned on May 31, 2011. Dr. Hann graduated from University of California, Geffen School of Medicine in 2011. Dr. Hann holds California license A125034.
- NPI
- 1689968224NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567697451
- NPI enumeration date
- May 31, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 456-6270
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John W. Hann practices at UCI Health Family Health Center - Santa Ana in Santa Ana, California
Dr. Hann's primary practice is UCI Health Family Health Center - Santa Ana, at 800 North Main Street, Santa Ana, CA 92701 in Orange County. The practice phone is (714) 456-6270.
- UCI Health Family Health Center - Santa Ana800 North Main Street, Santa Ana, CA 92701 · Orange CountyPhone(714) 456-6270
Source: Dmand AI Affiliation Data
Dr. John W. Hann is affiliated with 2 sites of care and 3 medical groups
Dr. Hann's primary practice is UCI Health Family Health Center - Santa Ana in Santa Ana, California. Dr. Hann is also affiliated with UCI Health - Orange. The medical group on file is UCI Health Family Health Center, Anaheim. Dmand AI also links Dr. Hann to 2 more medical groups, each named with a free account. Dr. Hann's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John W. Hann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hann practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCI Health Family Health Center - Santa Ana | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John W. Hann is one of 3,186 hospitalists in California
Hospitalist is Dr. Hann's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Hann is licensed in California.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
Hospitalists near Dr. Hann
Counts of hospitalists 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 W. Hann billed Medicare for 200 services in 2024
CMS data shows 200 Medicare services from Dr. Hann across 4 procedure codes in 2024, for 62 Medicare patients. Medicare paid $21,033 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hann's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4852024: 20059%
Dr. Hann compared with the California median for hospitalists, 2024
- Dr. Hann
- California median
- Medicare services
- 200vs 43053% below
- Medicare patients
- 62vs 20169% below
- Part D claims
- 22vs 6968% below
Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.
Dr. Hann'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John W. Hann treated 62 Medicare patients in 2024, average age 75
CMS counts 62 Medicare patients who saw Dr. Hann in 2024. The largest group is 75 to 84, with 19 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 61% are also on Medicaid. Their average risk score is 4.51, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Hann's median patient age at 52, with 63% women.
Dr. Hann's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hann's Medicare patients by sex, 2024
- Women3048%
- Men3252%
Chronic conditions among Dr. Hann's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes69%
- Arthritis65%
- Chronic kidney disease55%
- Heart failure52%
- Ischemic heart disease52%
- Atrial fibrillation44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women63%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John W. Hann wrote 77 Medicare Part D claims in 2024
In 2024, Dr. Hann wrote 77 Medicare Part D claims for 30 patients. 75% of them were for generic drugs. CMS names the drug for 22 of them, across 2 drugs with 11 or more claims each, at $24,981 in total drug cost. In 2020, CMS named 19 claims across 1 drug.
Dr. Hann's Part D claims by kind of drug, 2024
- Generic58 claims75%
- Brand-name and other19 claims25%
Dr. Hann's most prescribed drugs by claims, 2022
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. Hann's Part D claims, 2024
- Antibiotics14%11 of 77 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, 2020 to 2022
- 2020
- 2022
- Claims for drugs CMS names
- 2020: 192022: 2216%
Drugs named by CMS: 2 in 2022, 1 in 2020.
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. John W. Hann scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Hann for performance year 2024, reported through an alternative payment model (APM). Dr. Hann accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Hann's MIPS scores, performance year 2024
- 100of 100Final score
- 83.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. John W. Hann graduated from University of California, Geffen School of Medicine
Dr. Hann graduated from University of California, Geffen School of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John W. Hann'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Clinician Public Reporting: Overall MIPS Performance (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 W. Hann
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 W. Hann's NPI number?
Dr. John W. Hann's NPI number is 1689968224. It was assigned on May 31, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. John W. Hann?
Dr. John W. Hann is a hospitalist in Santa Ana, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. John W. Hann practice?
Dr. Hann practices at 800 North Main Street, Santa Ana, CA 92701. Dr. Hann's primary practice is UCI Health Family Health Center - Santa Ana in Santa Ana, California. Dmand AI also links Dr. Hann to 2 medical groups.
What is Dr. John W. Hann's office phone number?
The practice phone on file for Dr. Hann is (714) 456-6270.
What is Dr. John W. Hann's medical license number?
Dr. Hann holds California license A125034.
Which hospitals is Dr. John W. Hann affiliated with?
Dr. Hann is affiliated with UCI Health - Orange.
What medical group is Dr. John W. Hann part of?
Dr. Hann is linked to UCI Health Family Health Center, Anaheim. Dmand AI links Dr. Hann to 2 more medical groups.
Does Dr. John W. Hann accept Medicare?
Yes. CMS data shows Dr. Hann billed Medicare for 200 services in 2024, and Dr. Hann accepts Medicare assignment.
What is Dr. John W. Hann's MIPS score?
Dr. Hann's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. John W. Hann see?
CMS counts 62 Medicare patients who saw Dr. Hann in 2024, with an average age of 75.
Show 4 more questionsShow fewer questions
What services does Dr. John W. Hann bill to Medicare?
In 2024, Dr. Hann's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).
Where did Dr. John W. Hann go to medical school?
Dr. Hann graduated from University of California, Geffen School of Medicine in 2011.
What drugs does Dr. John W. Hann prescribe most?
In 2022 Medicare Part D data, Dr. Hann's most prescribed drugs by claims were Ceftriaxone and Descovy.
How long has Dr. John W. Hann been practicing?
Dr. Hann graduated from medical school in 2011, 15 years ago.
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