Hannah Reiser, MD
NPI 1548797749 · Obstetrics & Gynecology Physician · Santa Monica, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hannah Reiser, MD is a Obstetrics & Gynecology Physician provider in Santa Monica, CA (NPI 1548797749).
Provider details
- NPI number
- 1548797749
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A171880 (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
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
16 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 16 | $99 |
Typical Medicare-allowed amounts for these services range $99–$99 (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 (3)
- 221 Westwood PlzLos Angeles, CA 90095-1447Phone: (310) 825-4073Fax: (310) 983-1172
- 200 Ucla Medical Plz Ste 430Los Angeles, CA 90095-1447Phone: (310) 794-7274
- 757 Westwood PlzObgynLos Angeles, CA 90095-7419Phone: (310) 825-9378
Registry dates
- Enumerated
- 2017-05-18
- Last updated
- 2026-01-16
- Certified
- 2026-01-16
Frequently asked questions
- What is Hannah Reiser's NPI number?
- Hannah Reiser's National Provider Identifier (NPI) is 1548797749, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hannah Reiser's specialty?
- Hannah Reiser is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Hannah Reiser located?
- Hannah Reiser's practice location on file with NPPES is 2001 Santa Monica Blvd Ste 380, Santa Monica, CA 90404-2179.
- What is Hannah Reiser's phone number?
- The practice phone number listed in the NPPES registry for Hannah Reiser is (310) 899-7500.
- Does Hannah Reiser accept Medicare?
- Hannah Reiser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hannah Reiser's NPI active?
- Yes — Hannah Reiser's NPI (1548797749) is active in the NPPES registry as of the last update on 2026-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.