NASSER JANBAY (M.D.) – Hematology & Oncology Physician, NPI 1699768374
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,474 INTERNAL MEDICINE in OK
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Provider Addresses for NASSER JANBAY (M.D.)
South Western Avenue, Oklahoma City, Oklahoma County, Oklahoma, 73139, United States
OKLAHOMA CITY, OK 731093411
Phone: (405) 631-0919
Fax: (405) 636-0518
Type: Location
5300, North Independence Avenue, Oklahoma City, Oklahoma County, Oklahoma, 73112, United States
SUITE 280
OKLAHOMA CITY, OK 731125556
Phone: (405) 631-0919
Fax: (405) 636-0518
Type: Mailing
PO BOX 776084
CHICAGO, IL 606776084
Phone:
Type: Mailing
4401 MCAULEY BLVD STE 2700
OKLAHOMA CITY, OK 731208565
Phone: (405) 751-4343
Fax: (405) 751-4346
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $57.
Total Amount is formed as General ($57) + Research ($0) + Ownership ($0) = $57.
Last reported payment date: 2023-09-05 • Largest payer in this snapshot: PFIZER INC. ($57).
Total Amount
$57
General + Research + Ownership
Payments
3
Total payment records
General Amount
$57
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-09-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $57 |
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: 2007-02-03
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 |
|---|---|---|---|---|
| I20070203000171 | I | Hematology/Oncology | OK | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 73109)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Pediatric Medicine | OK | |
| - | OK | |
| Physician Assistant | OK | |
| - | OK | |
| Internal Medicine | OK | |
| U R O L O G Y | OK | |
| - | OK | |
| U R O L O G Y | OK | |
| - | OK | |
| Family Practice | OK |
Reviews
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