Claire Zhang, M.D.
NPI 1194145672 · Gastroenterology Physician · Elkton, MD
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claire Zhang, M.D. is a Gastroenterology Physician provider in Elkton, MD (NPI 1194145672).
Provider details
- NPI number
- 1194145672
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- C1-0024329 (DE)
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
12 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
703 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 | 157 | $127 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 122 | $166 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 76 | $92 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 75 | $245 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 74 | $126 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 222 | 86 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 87 | 84 |
| Linaclotidebrand: Linzess | 60 | 17 |
| Dicyclomine Hcl | 59 | 38 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 31 | 30 |
| Famotidine | 26 | 13 |
| Pantoprazole Sodium | 26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$606 across 23 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)
- 4755 Ogletown Stanton RdNewark, DE 19718-1900Phone: (302) 733-1000
Registry dates
- Enumerated
- 2014-04-23
- Last updated
- 2021-07-27
- Certified
- 2021-07-27
Frequently asked questions
- What is Claire Zhang's NPI number?
- Claire Zhang's National Provider Identifier (NPI) is 1194145672, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claire Zhang's specialty?
- Claire Zhang is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Claire Zhang located?
- Claire Zhang's practice location on file with NPPES is 137 W High St Ste 2b, Elkton, MD 21921-8615.
- What is Claire Zhang's phone number?
- The practice phone number listed in the NPPES registry for Claire Zhang is (410) 398-8888.
- Does Claire Zhang accept Medicare?
- Claire Zhang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Claire Zhang's NPI active?
- Yes — Claire Zhang's NPI (1194145672) is active in the NPPES registry as of the last update on 2021-07-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.