JAY A GREENSTEIN (MD) – General Practice Physician, NPI 1982615696
General Practice Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for JAY A GREENSTEIN (MD)
PO BOX 82396
BAKERSFIELD, CA 933802396
Phone: (661) 323-5918
Fax: (661) 323-4703
Type: Mailing
2615, Eye Street, Bakersfield, Kern County, California, 93301, United States
BAKERSFIELD, CA 933012006
Phone: (661) 395-3000
Fax: (661) 323-4703
Type: Location
11309 COVENT GARDENS DR
BAKERSFIELD, CA 933119239
Phone: (661) 330-9294
Fax: (661) 665-8923
Type: Mailing
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: 2004-03-19
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 |
|---|---|---|---|---|
| I20040319001498 | I | Emergency Medicine | CA | 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 93380)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| EMERGENCY MEDICINE | CA | 93010 | Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report | 68 | 64 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | TX | |
| Emergency Medicine | NJ | |
| - | WA | |
| - | IN | |
| Emergency Medicine, Family Practice | IN | |
| - | OR | |
| Emergency Medicine, Family Practice, Emergency Medicine | FL | |
| - | CA | |
| Emergency Medicine | NY | |
| Emergency Medicine | CA |
Reviews
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