Keith Baker, M.D.
NPI 1538271267 · Internal Medicine Physician · Hillsdale, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Keith Baker, M.D. is a Internal Medicine Physician provider in Hillsdale, MI (NPI 1538271267).
Provider details
- NPI number
- 1538271267
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- KB041163 (MI)
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
19 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
194 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 166 | $8 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision By Physician93016 | 14 | $20 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Review By Physician93018 | 14 | $13 |
Typical Medicare-allowed amounts for these services range $8–$20 (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 · 158 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 406 | 125 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 279 | 81 |
| Levothyroxine Sodium | 216 | 69 |
| Amlodipine Besylate | 187 | 62 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 176 | 52 |
| Pravastatin Sodium | 170 | 48 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$198 across 5 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
- 2006-08-31
- Last updated
- 2011-04-26
Frequently asked questions
- What is Keith Baker's NPI number?
- Keith Baker's National Provider Identifier (NPI) is 1538271267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keith Baker's specialty?
- Keith Baker is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Keith Baker located?
- Keith Baker's practice location on file with NPPES is 1456 Hudson Rd, Hillsdale, MI 49242-8314.
- What is Keith Baker's phone number?
- The practice phone number listed in the NPPES registry for Keith Baker is (517) 439-0200.
- Does Keith Baker accept Medicare?
- Keith Baker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Keith Baker's NPI active?
- Yes — Keith Baker's NPI (1538271267) is active in the NPPES registry as of the last update on 2011-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.