James Martin Hammel, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Grand Rapids, MI
James Martin Hammel, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Grand Rapids, Michigan, and NPI 1063461317, issued on May 6, 2006. Check the license (Michigan 4301505068, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- James Martin Hammel
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License number
- 4301505068 MI
Self-reported in NPPES; status is on the state search - Practice location
- 25 Michigan St NE Ste 4200, Grand Rapids, MI 49503
- Phone
- (616) 267-9150
- Enumerated
- May 6, 2006
- Record last updated
- Mar 22, 2024
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 208 in Michigan → Look up another NPI →
Also registered at 25 Michigan St NE Ste 4200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yasser Al Khatib, MDPediatric Cardiology Physician1053311779
- Sarah Badran, MDPediatric Cardiology Physician1114067469
- Giedrius BaliulisThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1215311220
- Jean Ballweg, M.D.Pediatric Cardiology Physician1043236730
- Tammy Bectel, NPAcute Care Nurse Practitioner1881119667
- Khira Benson, CNPAcute Care Nurse Practitioner1003425380
Verify James Martin Hammel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301505068Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
James Martin Hammel among 208 thoracic surgery (cardiothoracic vascular surgery) physician records in Michigan
James Martin Hammel, MD is one of 208 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Michigan. 78% 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, 46% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2024 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Michigan
There are 208 thoracic surgery (cardiothoracic vascular surgery) physician records in Michigan.
All 208 in Michigan → Every provider in Grand Rapids → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Osama Eltayeb, M.D.Grand Rapids, MI 495031336111681
- Justin Fanning, MDGrand Rapids, MI 495031700908522
- John Heiser, MDGrand Rapids, MI 495031174596639
- Neal Hillman, MDGrand Rapids, MI 495031073583126
- Robert Hooker, MDGrand Rapids, MI 495031265405765
- Marzia Leacche, M.D.Grand Rapids, MI 495031154478980
- Edward Murphy, MDGrand Rapids, MI 495031124090808
- John Paris, MDGrand Rapids, MI 495031871512293
Common questions
What is James Martin Hammel, MD's NPI number?
James Martin Hammel, MD's National Provider Identifier (NPI) is 1063461317, issued on May 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Martin Hammel, MD located?
The NPPES record lists a practice address at 25 Michigan St NE Ste 4200, Grand Rapids, MI, 49503. Phone: (616) 267-9150. Providers update this record themselves, so call before visiting.
How can I verify James Martin Hammel, MD's license?
NPPES lists Michigan license number 4301505068, 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.
What is James Martin Hammel, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. 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.