Mary Zhang, MD
NPI 1144797101 · Family Medicine Physician · Columbia, MO
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Zhang, MD is a Family Medicine Physician provider in Columbia, MO (NPI 1144797101).
Provider details
- NPI number
- 1144797101
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- E15246 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 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
478 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 186 | $159 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 116 | $7 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 107 | $110 |
| Critical Care, First 30-74 Minutes99291 | 50 | $193 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 19 | $65 |
Typical Medicare-allowed amounts for these services range $7–$193 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
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 |
|---|---|---|
| Ketorolac Tromethamine | 28 | 27 |
| Methylprednisolone | 24 | 24 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 22 | 22 |
| Gabapentin | 20 | — |
| Pantoprazole Sodium | 18 | 14 |
| Nifedipinebrand: Nifedipine Er | 15 | — |
| Baclofen | 14 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-10-29
- Last updated
- 2022-07-26
- Certified
- 2022-07-26
Frequently asked questions
- What is Mary Zhang's NPI number?
- Mary Zhang's National Provider Identifier (NPI) is 1144797101, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Zhang's specialty?
- Mary Zhang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Zhang located?
- Mary Zhang's practice location on file with NPPES is 200 Southampton Drive, Columbia, MO 65203.
- What is Mary Zhang's phone number?
- The practice phone number listed in the NPPES registry for Mary Zhang is (573) 814-1170.
- Does Mary Zhang accept Medicare?
- Mary Zhang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Zhang's NPI active?
- Yes — Mary Zhang's NPI (1144797101) is active in the NPPES registry as of the last update on 2022-07-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.