Katherine Hahn, MD
NPI 1457697211 · Gastroenterology Physician · Beverly Hills, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Hahn, MD is a Gastroenterology Physician provider in Beverly Hills, CA (NPI 1457697211).
Provider details
- NPI number
- 1457697211
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- D0088137 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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 tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
421 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 109 | $122 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 73 | $128 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 67 | $95 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 41 | $139 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 38 | $135 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 83 | 29 |
| Pantoprazole Sodium | 69 | 21 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 42 | 40 |
| Famotidine | 26 | — |
| Linaclotidebrand: Linzess | 26 | — |
| Prucalopride Succinatebrand: Motegrity | 16 | — |
| Amitriptyline Hcl | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$252 across 14 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 10801 Lockwood Dr Ste 200Silver Spring, MD 20901-1562Phone: (301) 593-2002Fax: (301) 593-4781
- 50 Richmar DrSayville, NY 11782-1431Phone: (631) 807-9252
Registry dates
- Enumerated
- 2012-12-26
- Last updated
- 2022-12-15
- Certified
- 2022-12-15
Frequently asked questions
- What is Katherine Hahn's NPI number?
- Katherine Hahn's National Provider Identifier (NPI) is 1457697211, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Hahn's specialty?
- Katherine Hahn is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Hahn located?
- Katherine Hahn's practice location on file with NPPES is 8536 Wilshire Blvd # 302, Beverly Hills, CA 90211-3153.
- What is Katherine Hahn's phone number?
- The practice phone number listed in the NPPES registry for Katherine Hahn is (310) 248-8200.
- Does Katherine Hahn accept Medicare?
- Katherine Hahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Hahn's NPI active?
- Yes — Katherine Hahn's NPI (1457697211) is active in the NPPES registry as of the last update on 2022-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.