John Hann, M.D.
NPI 1689968224 · Hospitalist Physician · Orange, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Hann, M.D. is a Hospitalist Physician provider in Orange, CA (NPI 1689968224).
Provider details
- NPI number
- 1689968224
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A125034 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
200 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 98 | $131 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 39 | $87 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 33 | $127 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 30 | $191 |
Typical Medicare-allowed amounts for these services range $87–$191 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 3291 Loma Vista RdVentura, CA 93003-3099Phone: (805) 652-6228
Registry dates
- Enumerated
- 2011-05-31
- Last updated
- 2023-10-17
- Certified
- 2023-10-17
Frequently asked questions
- What is John Hann's NPI number?
- John Hann's National Provider Identifier (NPI) is 1689968224, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hann's specialty?
- John Hann is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is John Hann located?
- John Hann's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is John Hann's phone number?
- The practice phone number listed in the NPPES registry for John Hann is (714) 456-7890.
- Does John Hann accept Medicare?
- John Hann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Hann's NPI active?
- Yes — John Hann's NPI (1689968224) is active in the NPPES registry as of the last update on 2023-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.