Thomas Joseph Loss, MD
Internal Medicine Physician · Grosse Pointe Woods, MI
Thomas Joseph Loss, MD is an internal medicine physician with a practice address in Grosse Pointe Woods, Michigan, and NPI 1063973980, issued on Mar 26, 2019. Check the license (Michigan 4301506275, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Thomas Joseph Loss
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301506275 MI
Self-reported in NPPES; status is on the state search - Practice location
- 19229 Mack Ave Ste 24, Grosse Pointe Woods, MI 48236
- Phone
- (313) 884-5522
- Enumerated
- Mar 26, 2019
- Record last updated
- Apr 21, 2025
- Fax
- (313) 884-6054
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 19229 Mack Ave Ste 24
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas Joseph Loss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301506275Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
95 Medicare Part D claims for 36 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Prednisone13 claims
- Eliquis11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $420.16
12 payments; by number, the most common kind was food and beverage; the largest payer was Incyte Corporation. 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 Joseph Loss among 5,735 internal medicine physician records in Michigan
Thomas Joseph Loss, 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 2019, is newer than 76% of them.
- NPI issued2019 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2025 · 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).
21 internal medicine physician records list a practice address in Grosse Pointe Woods
They are 21 of the 561 NPPES records with a practice address in Grosse Pointe Woods, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Grosse Pointe Woods → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joseph Beals, MDGrosse Pointe Shores, MI 482361578565115
- Muna Beeai, MDGrosse Pointe Farms, MI 482361689676215
- Mohammed Beeai, MDGrosse Pointe Woods, MI 482361356334270
- Patrick Charles, M.D.Detroit, MI 482361396742151
- Mark Dukaj, MDDetroit, MI 482361285636639
- Mohamad Fakih, MDGrosse Pointe Woods, MI 482361992798771
- Ronald Hertz, DOGrosse Pointe Woods, MI 482361053304816
- Raymond Hilu, MDGrosse Pointe Woods, MI 482361689667453
Common questions
What is Thomas Joseph Loss, MD's NPI number?
Thomas Joseph Loss, MD's National Provider Identifier (NPI) is 1063973980, issued on Mar 26, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Joseph Loss, MD located?
The NPPES record lists a practice address at 19229 Mack Ave Ste 24, Grosse Pointe Woods, MI, 48236. Phone: (313) 884-5522. Providers update this record themselves, so call before visiting.
How can I verify Thomas Joseph Loss, MD's license?
NPPES lists Michigan license number 4301506275, 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 Joseph Loss, MD prescribe under Medicare Part D?
In 2024, Thomas Joseph Loss, MD had 95 Medicare Part D claims for 36 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Thomas Joseph Loss, MD's MIPS final score?
The 2023 MIPS final score is 84.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.