NPPES file of Aug 9, 2026

Gregory D. Krol, M.D.FACP

Internal Medicine Physician · Sterling Heights, MI

Gregory D. Krol, M.D.FACP is an internal medicine physician with a practice address in Sterling Heights, Michigan, and NPI 1548338098, issued on Dec 1, 2006. Check the license (Michigan 4301043866, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548338098
Name
Gregory D. Krol
Credential
M.D.FACP
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
4301043866 MI
Self-reported in NPPES; status is on the state search
Practice location
Henry Ford Health System, Sterling Heights, MI 48310
Phone
(586) 977-9936
Enumerated
Dec 1, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(586) 268-8158
Medicare enrollment
Enrolled (PECOS I20100604000922); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Human Medicine, 1977
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →

Also registered at Henry Ford Health System

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Usha Batra, M.D.Pediatrics Physician1245387042
  2. Surjit Bhasin, MDCardiovascular Disease Physician1255409785
  3. Lionel Bodzin, M.D.Occupational Medicine Physician1487728093
  4. James Freeman, M.D.Orthopaedic Surgery Physician1487728994
  5. Mouna Haddad-Khoury, M.D.Internal Medicine Physician1578631016
  6. Lawrence Hamburger, M.D.Ophthalmology Physician1821158221

Verify Gregory D. Krol in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301043866    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

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2.9 times the Medicare Part D claims of the average internal medicine physician in 2024

9,219 Medicare Part D claims for 609 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 313 claims were for opioids.

  1. Gregory Krol9,219
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium677 claims
  2. Losartan Potassium548 claims
  3. Amlodipine Besylate360 claims
  4. Levothyroxine Sodium315 claims
  5. Metoprolol Succinate315 claims
  6. Omeprazole272 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.

Bills Medicare through one group practice

  1. Henry Ford Health SystemSterling Heights, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gregory D. Krol among 5,735 internal medicine physician records in Michigan

Gregory D. Krol, M.D.FACP 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 fileYes · 62% of these records are
  • Graduated1977 · median 2006 among the 3,564 with a school on file
  • Record last updated2007 · 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).

58 internal medicine physician records list a practice address in Sterling Heights

They are 58 of the 2,991 NPPES records with a practice address in Sterling Heights, and 5,735 internal medicine physician records in Michigan.

All 5,735 in Michigan → Every provider in Sterling Heights → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Victor Al-Matchy, M.D.Sterling Heights, MI 483101609811975
  2. David Alnajjar, MDSterling Heights, MI 483101386625770
  3. Mouna Haddad-Khoury, M.D.Sterling Heights, MI 483101578631016
  4. Lana Kawa, MDSterling Heights, MI 483101073697199
  5. Julian Kutinsky, DOSterling Heights, MI 483101770550212
  6. Raja Lewis, MDSterling Heights, MI 483101558479469
  7. Kavita Paragi, M.D.Sterling Heights, MI 483101417025966
  8. Shantha Rajakrishnamurthy, MDSterling Heights, MI 483101255313201

Common questions

What is Gregory D. Krol, M.D.FACP's NPI number?

Gregory D. Krol, M.D.FACP's National Provider Identifier (NPI) is 1548338098, issued on Dec 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory D. Krol, M.D.FACP located?

The NPPES record lists a practice address at Henry Ford Health System, Sterling Heights, MI, 48310. Phone: (586) 977-9936. Providers update this record themselves, so call before visiting.

How can I verify Gregory D. Krol, M.D.FACP's license?

NPPES lists Michigan license number 4301043866, 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 Gregory D. Krol, M.D.FACP prescribe under Medicare Part D?

In 2024, Gregory D. Krol, M.D.FACP had 9,219 Medicare Part D claims for 609 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.