BENJAMIN JOHN I DIACZOK (MD) – Internal Medicine Physician, NPI 1760480834
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,218 INTERNAL MEDICINE in MI
Provider Addresses for BENJAMIN JOHN I DIACZOK (MD)
24 FRANK LLOYD WRIGHT DR # J2000
ANN ARBOR, MI 481059484
Phone: (734) 747-6766
Fax: (734) 222-3100
Type: Mailing
44428 WOODWARD AVE STE 102
PONTIAC, MI 483415009
Phone: (248) 858-3126
Fax: (248) 858-6499
Type: Location
22255 Greenfield Rd
410
Southfield, MI 480753710
Phone: (248) 849-2850
Fax: (248) 849-5751
Type: Location
44405 Woodward Ave
Pontiac, MI 483415023
Phone: (248) 858-3000
Fax: (248) 858-6499
Type: Location
Telegraph Road, Southfield, Oakland County, Michigan, 48033, United States
210
SOUTHFIELD, MI 480342518
Phone: (248) 746-0342
Fax: (248) 746-0369
Type: Mailing
22255, Greenfield Road, Southfield, Oakland County, Michigan, 48075, United States
410
SOUTHFIELD, MI 480753710
Phone: (248) 849-2850
Fax: (248) 849-5751
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2006-04-19
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20060419000023 | I | Internal Medicine | MI | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 52 | 31 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 45 | 32 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 35 | 28 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 48105)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Hospitalist, Internal Medicine | MI | |
| Interventional Radiology | MI | |
| Cardiovascular Disease (Cardiology) | MI | |
| Physician Assistant | MI | |
| Physician Assistant | MI | |
| - | MI | |
| - | MI | |
| Internal Medicine, Geriatric Medicine | MI | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MI | |
| Hospitalist, Internal Medicine | MI |
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