Alon Unger, MD
NPI 1285833061 · Hospitalist Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alon Unger, MD is a Hospitalist Physician provider in San Francisco, CA (NPI 1285833061).
Provider details
- NPI number
- 1285833061
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A108154 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
129 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 | 60 | $132 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 58 | $88 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 11 | $130 |
Typical Medicare-allowed amounts for these services range $88–$132 (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
Registry dates
- Enumerated
- 2007-07-12
- Last updated
- 2022-02-24
- Certified
- 2022-02-24
Frequently asked questions
- What is Alon Unger's NPI number?
- Alon Unger's National Provider Identifier (NPI) is 1285833061, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alon Unger's specialty?
- Alon Unger is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Alon Unger located?
- Alon Unger's practice location on file with NPPES is 533 Parnassus Ave, San Francisco, CA 94143.
- What is Alon Unger's phone number?
- The practice phone number listed in the NPPES registry for Alon Unger is (415) 476-6762.
- Does Alon Unger accept Medicare?
- Alon Unger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alon Unger's NPI active?
- Yes — Alon Unger's NPI (1285833061) is active in the NPPES registry as of the last update on 2022-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.