Elinor Zhou, MD
NPI 1275952921 · Internal Medicine Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elinor Zhou, MD is a Internal Medicine Physician provider in Baltimore, MD (NPI 1275952921).
Provider details
- NPI number
- 1275952921
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- D86060 (MD)
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
12 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
1,017 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 243 | $17 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 138 | $139 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 126 | $175 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 101 | $188 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 91 | $98 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 141 | 133 |
| Omeprazole | 124 | 54 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 123 | 116 |
| Pantoprazole Sodium | 86 | 27 |
| Esomeprazole Magnesium | 83 | 35 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 55 | 48 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$662 across 30 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
- 2014-04-09
- Last updated
- 2020-06-30
- Certified
- 2020-06-30
Frequently asked questions
- What is Elinor Zhou's NPI number?
- Elinor Zhou's National Provider Identifier (NPI) is 1275952921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elinor Zhou's specialty?
- Elinor Zhou is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Elinor Zhou located?
- Elinor Zhou's practice location on file with NPPES is 301 Saint Paul St, Baltimore, MD 21202-2102.
- What is Elinor Zhou's phone number?
- The practice phone number listed in the NPPES registry for Elinor Zhou is (410) 332-9067.
- Does Elinor Zhou accept Medicare?
- Elinor Zhou is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elinor Zhou's NPI active?
- Yes — Elinor Zhou's NPI (1275952921) is active in the NPPES registry as of the last update on 2020-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.