Hans Gerdes, MD
NPI 1437121217 · Gastroenterology Physician · New York, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hans Gerdes, MD is a Gastroenterology Physician provider in New York, NY (NPI 1437121217).
Provider details
- NPI number
- 1437121217
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 159353 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
749 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) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 108 | $262 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 90 | $85 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 87 | $89 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 69 | $83 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 48 | $95 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 176 | 48 |
| Famotidine | 51 | 18 |
| Pantoprazole Sodium | 38 | 15 |
| Esomeprazole Magnesium | 36 | — |
| Erythromycin Basebrand: Erythromycin | 23 | — |
| Colestipol Hcl | 22 | — |
| Mesalamine | 22 | — |
| Dexlansoprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$67 across 2 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
Registry dates
- Enumerated
- 2006-02-06
- Last updated
- 2015-02-24
Frequently asked questions
- What is Hans Gerdes's NPI number?
- Hans Gerdes's National Provider Identifier (NPI) is 1437121217, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hans Gerdes's specialty?
- Hans Gerdes is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Hans Gerdes located?
- Hans Gerdes's practice location on file with NPPES is 1275 York Ave, New York, NY 10021-6007.
- What is Hans Gerdes's phone number?
- The practice phone number listed in the NPPES registry for Hans Gerdes is (212) 639-2000.
- Does Hans Gerdes accept Medicare?
- Hans Gerdes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hans Gerdes's NPI active?
- Yes — Hans Gerdes's NPI (1437121217) is active in the NPPES registry as of the last update on 2015-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.