STEPHEN R RUBENSTEIN (M.D.) – Internal Medicine Physician, NPI 1407960990
Internal Medicine Physician
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NPPES metrics only — not quality of care.
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Provider Addresses for STEPHEN R RUBENSTEIN (M.D.)
Saint Mary's Hospital, 56, Franklin Street, Exchange Place, Waterbury, New Haven County, Connecticut, 06706, United States
3RD FLOOR
WATERBURY, CT 067061253
Phone: (203) 709-8873
Fax: (203) 709-9873
Type: Mailing
70, Heminway Park Road, Watertown, Naugatuck Valley Planning Region, Connecticut, 06795, United States
WATERTOWN, CT 067952612
Phone: (860) 945-3350
Fax: (860) 945-3251
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: 2010-04-10
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 |
|---|---|---|---|---|
| I20100410000057 | I | Internal Medicine | CT | 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 06706)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | CT | 90670 | Pneumococcal vaccine for injection into muscle | 127 | 127 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CT | |
| - | CT | |
| - | CT | |
| - | CT | |
| - | CT | |
| - | MA | |
| E N D O C R I N O L O G Y | CT | |
| - | PA | |
| - | CT | |
| - | TX |
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