John Bitner, MD
Internal Medicine Physician · Cass City, MI
John Bitner, MD is an internal medicine physician with a practice address in Cass City, Michigan, and NPI 1134118763, issued on Oct 17, 2005. Check the license on the Michigan Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John Bitner
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 4672 Hill St, Cass City, MI 48726
- Phone
- (989) 872-8202
- Enumerated
- Oct 17, 2005
- Entity
- Type 1 · individual
Also registered at 4672 Hill St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ricky Coleman, D.O.Emergency Medicine Physician1225077365
- Francis Ozim, M.D.Surgery Physician1497723308
Verify John Bitner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.6 times the Medicare Part D claims of the average internal medicine physician in 2024
10,113 Medicare Part D claims for 482 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 278 claims were for opioids.
Most prescribed
- Levothyroxine Sodium372 claims
- Amlodipine Besylate335 claims
- Atorvastatin Calcium326 claims
- Rosuvastatin Calcium309 claims
- Losartan Potassium304 claims
- Lisinopril259 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: $447.04
23 payments, mostly food and beverage; the largest payer was Lilly USA, LLC. 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.
One hospital or facility affiliation
- Hills And Dales General Hospital IncCass City, 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.
4 internal medicine physician records list a Cass City practice address
They are 4 of the 333 NPPES records with a Cass City practice address, and 6,589 internal medicine physician records in Michigan.
All 4 in Cass City → All 6,589 in Michigan → Every provider in Cass City →
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 John Bitner, MD's NPI number?
John Bitner, MD's National Provider Identifier (NPI) is 1134118763, issued on Oct 17, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Bitner, MD located?
The NPPES record lists a practice address at 4672 Hill St, Cass City, MI, 48726. Phone: (989) 872-8202. Providers update this record themselves, so call before visiting.
How can I verify John Bitner, MD's license?
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 John Bitner, MD prescribe under Medicare Part D?
In 2024, John Bitner, MD had 10,113 Medicare Part D claims for 482 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.