Thomas Lammy, MD
NPI 1982653242 · Internal Medicine Physician · Suttons Bay, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Lammy, MD is a Internal Medicine Physician provider in Suttons Bay, MI (NPI 1982653242).
Provider details
- NPI number
- 1982653242
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- TL047970 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
170 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 Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 128 | $47 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 42 | $75 |
Typical Medicare-allowed amounts for these services range $47–$75 (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) |
|---|---|
| Atorvastatin Calcium | 78 |
| Metformin Hcl | 47 |
| Levothyroxine Sodium | 41 |
| Metoprolol Succinate | 37 |
| Losartan Potassium | 23 |
| Chlorhexidine Gluconate | 21 |
| Amlodipine Besylate | 20 |
| Rivaroxabanbrand: Xarelto | 17 |
| Tamsulosin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$209 across 2 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
Additional practice locations (1)
- 93 W Fourth StSuttons Bay, MI 49682-8408Phone: (231) 271-5990Fax: (231) 271-5959
Registry dates
- Enumerated
- 2006-05-06
- Last updated
- 2020-03-10
- Certified
- 2020-03-10
Frequently asked questions
- What is Thomas Lammy's NPI number?
- Thomas Lammy's National Provider Identifier (NPI) is 1982653242, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Lammy's specialty?
- Thomas Lammy is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Lammy located?
- Thomas Lammy's practice location on file with NPPES is 93 W 4th St Ste C, Suttons Bay, MI 49682-8408.
- What is Thomas Lammy's phone number?
- The practice phone number listed in the NPPES registry for Thomas Lammy is (231) 271-5990.
- Does Thomas Lammy accept Medicare?
- Thomas Lammy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Lammy's NPI active?
- Yes — Thomas Lammy's NPI (1982653242) is active in the NPPES registry as of the last update on 2020-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.