Gregory Berger, M.D.
Internal Medicine Physician · Southfield, MI
Gregory Berger, M.D. is an internal medicine physician with a practice address in Southfield, Michigan, and NPI 1043279862, issued on Mar 21, 2006. Check the license (Michigan 4301035320, as entered in NPPES) on the Michigan Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Gregory Berger
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301035320 MI
Self-reported in NPPES; status is on the state search - Practice location
- 28411 Northwestern Hwy, Southfield, MI 48034
- Phone
- (248) 354-4709
- Enumerated
- Mar 21, 2006
- Entity
- Type 1 · individual
Also registered at 28411 Northwestern Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory Berger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine
Search for license 4301035320Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
80% fewer Medicare Part D claims than the average internal medicine physician in 2024
545 Medicare Part D claims for 130 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 25 claims were for opioids.
Most prescribed
- Alcohol Prep Pads78 claims
- Nano 2nd Gen Pen Needle56 claims
- Single Use Swab31 claims
- Alcohol Swabs19 claims
- Amlodipine Besylate19 claims
- Atorvastatin Calcium16 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: $67.52
3 payments, mostly food and beverage; the largest payer was Exact Sciences Corporation. The 65,274 providers of this specialty with any payment received $2,536.66 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.
2 hospital and facility affiliations
- Simed PCDetroit, MI
- Unified Academic Physicians PCDetroit, MI
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
211 internal medicine physician records list a Southfield practice address
They are 211 of the 5,689 NPPES records with a Southfield practice address, and 6,589 internal medicine physician records in Michigan.
All 211 in Southfield → All 6,589 in Michigan → Every provider in Southfield →
Other internal medicine physician records in Michigan
- Keith Aaronson, MDAnn Arbor, MI1144305301
- Tomas Abalo, M.D.Iron Mountain, MI1336199975
- Ali Abbas, M.D.Pontiac, MI1972167526
- Hawazin Abbas, MDAuburn Hills, MI1699020677
- Imran Abbasi, D.O.Warren, MI1427409887
- Ramzi Abbasi, MDSaginaw, MI1164270005
- Saadat Abbasi, MDKalamazoo, MI1912005596
- Shahzaman Abbasi, MDLansing, MI1376512111
- Youssef Abbiss, D.O.Mount Clemens, MI1982991881
- Joseph Abbo, MDYpsilanti, MI1982136503
Common questions
What is Gregory Berger, M.D.'s NPI number?
Gregory Berger, M.D.'s National Provider Identifier (NPI) is 1043279862, issued on Mar 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Berger, M.D. located?
The NPPES record lists a practice address at 28411 Northwestern Hwy, Southfield, MI, 48034. Phone: (248) 354-4709. Providers update this record themselves, so call before visiting.
How can I verify Gregory Berger, M.D.'s license?
NPPES lists Michigan license number 4301035320, as entered by the provider. Search the Michigan Board of Medicine at https://www.michigan.gov/lara/bureau-list/bpl/health/hp-lic-health-prof/medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Berger, M.D. prescribe under Medicare Part D?
In 2024, Gregory Berger, M.D. had 545 Medicare Part D claims for 130 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.