Mary Shoemaker, MD
NPI 1821652900 · Internal Medicine Physician · Houston, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Shoemaker, MD is a Internal Medicine Physician provider in Houston, TX (NPI 1821652900).
Provider details
- NPI number
- 1821652900
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 71084 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
137 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 58 | $89 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 40 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 23 | $125 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 16 | $127 |
Typical Medicare-allowed amounts for these services range $8–$127 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 41 | 19 |
| Amlodipine Besylate | 31 | 13 |
| Losartan Potassium | 22 | — |
| Lisinopril | 19 | — |
| Levothyroxine Sodium | 16 | — |
| Metformin Hcl | 15 | — |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-04-24
- Last updated
- 2026-01-06
- Certified
- 2026-01-06
Frequently asked questions
- What is Mary Shoemaker's NPI number?
- Mary Shoemaker's National Provider Identifier (NPI) is 1821652900, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Shoemaker's specialty?
- Mary Shoemaker is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Shoemaker located?
- Mary Shoemaker's practice location on file with NPPES is 915 Gessner Rd Ste 100, Houston, TX 77024-2537.
- What is Mary Shoemaker's phone number?
- The practice phone number listed in the NPPES registry for Mary Shoemaker is (713) 242-2222.
- Does Mary Shoemaker accept Medicare?
- Mary Shoemaker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Shoemaker's NPI active?
- Yes — Mary Shoemaker's NPI (1821652900) is active in the NPPES registry as of the last update on 2026-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.