GREGORY K. BEHBEHANI (M.D., PH.D.) – Hematology (Internal Medicine) Physician, NPI 1053679217
Hematology (Internal Medicine) Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
1,531 HEMATOLOGY/ONCOLOGY in CA
Provider Addresses for GREGORY K. BEHBEHANI (M.D., PH.D.)
875 BLAKE WILBUR DR.
STANFORD, CA 943055820
Phone:
Type: Mailing
700 ACKERMAN RD STE 2120
COLUMBUS, OH 432021559
Phone: (614) 293-3196
Type: Mailing
460 W 10TH AVE
COLUMBUS, OH 432101240
Phone: (614) 293-3196
Fax: (614) 293-4812
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 9 Open Payments records for all available years, with a total value of $1,426.
Total Amount is formed as General ($1,426) + Research ($0) + Ownership ($0) = $1,426.
Last reported payment date: 2024-09-12 • Largest payer in this snapshot: Adaptive Biotechnologies Corporation ($1,279).
Total Amount
$1,426
General + Research + Ownership
Payments
9
Total payment records
General Amount
$1,426
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Adaptive Biotechnologies Corporation | $1,279 |
| JAZZ PHARMACEUTICALS INC. | $147 |
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: 2015-08-21
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 |
|---|---|---|---|---|
| I20150821012810 | I | Hematology/Oncology | OH | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 116 | 25 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 63 | 27 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 30 | 19 | $0 |
Insurance plans in this area (ZIP 94305)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiovascular Disease (Cardiology), Internal Medicine | PA | |
| - | OH | |
| Nurse Practitioner | OH | |
| Hospitalist, Internal Medicine | OH | |
| Nurse Practitioner | OH | |
| Medical Oncology | OH | |
| Medical Oncology | OH | |
| Nurse Practitioner | OH | |
| H O S P I T A L I S T | OH | |
| Medical Oncology | OH |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.