Benjamin John Diaczok, MD
Internal Medicine Physician · Pontiac, MI
Benjamin John Diaczok, MD is an internal medicine physician with a practice address in Pontiac, Michigan, and NPI 1760480834, issued on Jul 12, 2005. Check the license (Michigan 4301050499, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Benjamin John Diaczok
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301050499 MI
Self-reported in NPPES; status is on the state search - Practice location
- 44428 Woodward Ave Ste 102, Pontiac, MI 48341
- Phone
- (248) 858-3126
- Enumerated
- Jul 12, 2005
- Record last updated
- Apr 3, 2025
- Fax
- (248) 858-6499
- Medicaid ID
- 348812110 MI
- Medicare enrollment
- Enrolled (PECOS I20060419000023); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1985
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 44428 Woodward Ave Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Benjamin John Diaczok in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301050499Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
160 Medicare Part D claims for 46 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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 2 group practices
- Iha Health Services CorporationPontiac, MI
- Iha Ooma Primary LLCPontiac, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Benjamin John Diaczok among 5,735 internal medicine physician records in Michigan
Benjamin John Diaczok, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1985 · median 2006 among the 3,564 with a school on file
- 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).
115 internal medicine physician records list a practice address in Pontiac
They are 115 of the 1,951 NPPES records with a practice address in Pontiac, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Pontiac → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joseph Bander, MDPontiac, MI 483411386681385
- Hima Challa, MDPontiac, MI 483411306093448
- Liviu DanescuPontiac, MI 483411508034307
- Septimiu Danescu, M.D.Pontiac, MI 483411528215456
- Rajinder GrewalPontiac, MI 483411437327350
- Namdeo Kale, MDPontiac, MI 483411558435628
- Muhammad Khan, MDPontiac, MI 483411861461451
- Geetha Krishnamoorthy, MDPontiac, MI 483411790723625
Common questions
What is Benjamin John Diaczok, MD's NPI number?
Benjamin John Diaczok, MD's National Provider Identifier (NPI) is 1760480834, issued on Jul 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin John Diaczok, MD located?
The NPPES record lists a practice address at 44428 Woodward Ave Ste 102, Pontiac, MI, 48341. Phone: (248) 858-3126. Providers update this record themselves, so call before visiting.
How can I verify Benjamin John Diaczok, MD's license?
NPPES lists Michigan license number 4301050499, 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 Benjamin John Diaczok, MD prescribe under Medicare Part D?
In 2024, Benjamin John Diaczok, MD had 160 Medicare Part D claims for 46 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.
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.