Rong Zhang, M.D.
NPI 1669421855 · Internal Medicine Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rong Zhang, M.D. is a Internal Medicine Physician provider in Baltimore, MD (NPI 1669421855).
Provider details
- NPI number
- 1669421855
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- D0055059 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,040 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 575 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 269 | $91 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 77 | $57 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 61 | $127 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 32 | $15 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 51 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 194 | 54 |
| Lisinopril | 185 | 41 |
| Metoprolol Succinate | 141 | 31 |
| Metoprolol Tartrate | 137 | 40 |
| Tamsulosin Hcl | 125 | 36 |
| Pravastatin Sodium | 108 | 25 |
| Metformin Hcl | 102 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-08
- Last updated
- 2025-10-11
- Certified
- 2025-10-11
Frequently asked questions
- What is Rong Zhang's NPI number?
- Rong Zhang's National Provider Identifier (NPI) is 1669421855, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rong Zhang's specialty?
- Rong Zhang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rong Zhang located?
- Rong Zhang's practice location on file with NPPES is 3333 N Calvert St Ste 660, Baltimore, MD 21218-6519.
- What is Rong Zhang's phone number?
- The practice phone number listed in the NPPES registry for Rong Zhang is (410) 261-8558.
- Does Rong Zhang accept Medicare?
- Rong Zhang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rong Zhang's NPI active?
- Yes — Rong Zhang's NPI (1669421855) is active in the NPPES registry as of the last update on 2025-10-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.