Scott Timmer, MD
NPI 1881073427 · Internal Medicine Physician · Kalamazoo, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Scott Timmer, MD is a Internal Medicine Physician provider in Kalamazoo, MI (NPI 1881073427).
Provider details
- NPI number
- 1881073427
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301107522 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
523 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 307 | $76 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 112 | $109 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 104 | $164 |
Typical Medicare-allowed amounts for these services range $76–$164 (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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefdinir | 25 | 24 |
| Prednisone | 22 | 21 |
| Atorvastatin Calcium | 19 | — |
| Furosemide | 18 | 17 |
| Metoprolol Succinate | 17 | 16 |
| Aripiprazole | 12 | — |
| Celecoxib | 11 | — |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 across 1 record (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
Additional practice locations (1)
- 1000 Oakland DrKalamazoo, MI 49008-1282Phone: (269) 337-4400
Registry dates
- Enumerated
- 2015-05-28
- Last updated
- 2023-11-27
- Certified
- 2020-09-30
Frequently asked questions
- What is Scott Timmer's NPI number?
- Scott Timmer's National Provider Identifier (NPI) is 1881073427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Scott Timmer's specialty?
- Scott Timmer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Scott Timmer located?
- Scott Timmer's practice location on file with NPPES is 601 John St, Kalamazoo, MI 49007-5341.
- What is Scott Timmer's phone number?
- The practice phone number listed in the NPPES registry for Scott Timmer is (269) 341-8481.
- Does Scott Timmer accept Medicare?
- Scott Timmer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Scott Timmer's NPI active?
- Yes — Scott Timmer's NPI (1881073427) is active in the NPPES registry as of the last update on 2023-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.