BENJAMIN JOHN DIACZOK I MD
NPI 1760480834
Internal Medicine in Pontiac, MI

Active since July 12, 2005PECOS EnrolledAccepts Medicare Assignment
44428 WOODWARD AVE STE 102, PONTIAC, MI 48341(248) 858-3126(248) 858-6499 Get Directions Write a Review

NPPES record last updated: April 3, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Apr 3, 2025, Mar 7, 2023 (2 updates tracked since 2023).

About Benjamin John Diaczok I Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BENJAMIN JOHN DIACZOK I MD (NPI 1760480834) is an individual internal medicine provider in Pontiac, Michigan, licensed in Michigan (4301050499) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Trinity Health Oakland Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1760480834
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameBENJAMIN JOHN DIACZOK ICredential: MD
Location Address44428 WOODWARD AVE STE 102Pontiac, MI 48341-5009
Mailing Address24 Frank Lloyd Wright Dr # J2000Ann Arbor, MI 48105-9484 · (734) 747-6766 · Fax (734) 222-3100
Fax(248) 858-6499
Sole ProprietorNo
Medical School CMSWayne State University School Of MedicineGraduated 1985
Enumeration DateJuly 12, 2005
Last NPPES UpdateApril 3, 20252 updates tracked since enumeration
NPPES CertifiedApril 3, 2025
NPI 1760480834 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MI · 4301050499
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

44428 WOODWARD AVE STE 102, Pontiac, MI 48341

Secondary Practice Locations 2

Location 122255 Greenfield Rd, 410Southfield, MI 48075-3710 · Phone (248) 849-2850 · Fax (248) 849-5751
Location 244405 Woodward AvePontiac, MI 48341-5023 · Phone (248) 858-3000 · Fax (248) 858-6499

Other Identifiers 2

Medicaid348812110MI
Other4301050499MI · Controlled Substance

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Benjamin John Diaczok I Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1355350463
PECOS Enrollment IDI20060419000023
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 22 times for 17 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

This service was performed 73 times for 36 patients

Insertion of needle into vein for collection of blood sample

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

This service was performed 22 times for 20 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $33.57 for a new patient copayment and $25.58 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 48341 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $134.28
  • Minimum New Patient Price $58.04
  • Maximum New Patient Price $177.36
  • Average New Patient Copayment $33.57
  • Minimum New Patient Copayment $14.51
  • Maximum New Patient Copayment $44.34

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $102.35
  • Minimum Established Patient Price $18.32
  • Maximum Established Patient Price $143.49
  • Average Established Patient Copayment $25.58
  • Minimum Established Patient Copayment $4.58
  • Maximum Established Patient Copayment $35.87

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Benjamin Diaczok is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
TRINITY HEALTH OAKLAND HOSPITAL44405 WOODWARD AVE
PONTIAC, MI 48341
(248) 858-3000Acute Care Hospitals

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Internal Medicine
44428 WOODWARD AVE STE 102
PONTIAC, MI 48341
Internal Medicine
44428 WOODWARD AVE STE 102
PONTIAC, MI 48341
Internal Medicine
44428 WOODWARD AVE STE 102
PONTIAC, MI 48341
Internal Medicine
44428 WOODWARD AVE STE 102
PONTIAC, MI 48341

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1760480834, enumerated as an "individual" on July 12, 2005.

The provider is located at 44428 WOODWARD AVE STE 102 PONTIAC, MI 48341 and the phone number is (248) 858-3126.

Internal Medicine with taxonomy code 207R00000X.

The provider might be accepting Accepts: Blue Care Network of Michigan, Blue Cross Blue. Please consult your insurance carrier or call the provider to verify.

Benjamin Diaczok is affiliated with: TRINITY HEALTH OAKLAND HOSPITAL.