Thomas G. Lammy, MD
Internal Medicine Physician · Suttons Bay, MI
Thomas G. Lammy, MD is an internal medicine physician with a practice address in Suttons Bay, Michigan, and NPI 1982653242, issued on May 6, 2006. Check the license (Michigan TL047970, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Thomas G. Lammy
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- TL047970 MI
Self-reported in NPPES; status is on the state search - Practice location
- 93 W 4TH St Ste C, Suttons Bay, MI 49682
- Phone
- (231) 271-5990
- Enumerated
- May 6, 2006
- Record last updated
- Mar 10, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (231) 271-5959
- Medicaid IDs
- 4254806 MI
1982653242 MI - Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Verify Thomas G. Lammy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license TL047970Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average internal medicine physician in 2024
457 Medicare Part D claims for 37 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Atorvastatin Calcium78 claims
- Metformin Hcl47 claims
- Levothyroxine Sodium41 claims
- Metoprolol Succinate37 claims
- Losartan Potassium23 claims
- Chlorhexidine Gluconate21 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $208.63
2 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Thomas G. Lammy among 5,735 internal medicine physician records in Michigan
Thomas G. Lammy, MD is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2020 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 internal medicine physician record lists a practice address in Suttons Bay
They are 1 of the 58 NPPES records with a practice address in Suttons Bay, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Suttons Bay → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Troy Ahlstrom, M.D.Traverse City, MI 496841548265911
- Natalie Brown, M.D., PHDTraverse City, MI 496841427053529
- Elizabeth Elliot, D.O.Traverse City, MI 496841013919109
- David Friar, M.D.Traverse City, MI 496841720083108
- Kenneth Friar, M.D.Traverse City, MI 496841730184847
- William Howard, MDTraverse City, MI 496841588669725
- Michael Salata, M.D.Traverse City, MI 496841275538670
- Robert Sigworth, M.D.Traverse City, MI 496841336144740
Common questions
What is Thomas G. Lammy, MD's NPI number?
Thomas G. Lammy, MD's National Provider Identifier (NPI) is 1982653242, issued on May 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas G. Lammy, MD located?
The NPPES record lists a practice address at 93 W 4TH St Ste C, Suttons Bay, MI, 49682. Phone: (231) 271-5990. Providers update this record themselves, so call before visiting.
How can I verify Thomas G. Lammy, MD's license?
NPPES lists Michigan license number TL047970, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas G. Lammy, MD prescribe under Medicare Part D?
In 2024, Thomas G. Lammy, MD had 457 Medicare Part D claims for 37 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.