Weiming Yan, M.D.
NPI 1851552624 · Gastroenterology Physician · Frederick, MD
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Weiming Yan, M.D. is a Gastroenterology Physician provider in Frederick, MD (NPI 1851552624).
Provider details
- NPI number
- 1851552624
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- D0072237 (MD)
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 tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
666 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 223 | $126 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 116 | $83 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 107 | $90 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 99 | $234 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 78 | $76 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 157 | 63 |
| Omeprazole | 91 | 35 |
| Famotidine | 72 | 27 |
| Dicyclomine Hcl | 27 | 15 |
| Esomeprazole Magnesium | 27 | 13 |
| Sucralfate | 27 | 12 |
| Lansoprazole | 20 | — |
| Colestipol Hcl | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,865 across 83 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 (1)
- 5401 Old Court RdRandallstown, MD 21133-5103Phone: (410) 521-2200
Registry dates
- Enumerated
- 2008-06-24
- Last updated
- 2023-11-07
- Certified
- 2023-11-07
Frequently asked questions
- What is Weiming Yan's NPI number?
- Weiming Yan's National Provider Identifier (NPI) is 1851552624, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Weiming Yan's specialty?
- Weiming Yan is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Weiming Yan located?
- Weiming Yan's practice location on file with NPPES is 7109 Guilford Dr Ste 300, Frederick, MD 21704-5179.
- What is Weiming Yan's phone number?
- The practice phone number listed in the NPPES registry for Weiming Yan is (301) 695-6800.
- Does Weiming Yan accept Medicare?
- Weiming Yan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Weiming Yan's NPI active?
- Yes — Weiming Yan's NPI (1851552624) is active in the NPPES registry as of the last update on 2023-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.