JEFFREY C BASS (MD) – Internal Medicine Physician, NPI 1952350969
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,722 INTERNAL MEDICINE in MA
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Provider Addresses for JEFFREY C BASS (MD)
1;3A;7;9;11;13;17;21;23;25, Boylston Street, Chestnut Hill, Brookline, Norfolk County, Massachusetts, 02467, United States
UNIT 312
CHESTNUT HILL, MA 024671715
Phone: (617) 307-3200
Fax: (617) 307-3201
Mailing address matches the actual address.
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: 2005-03-29
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 |
|---|---|---|---|---|
| I20050329000697 | I | Internal Medicine | MA | 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 | 311 | 177 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 231 | 226 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 201 | 121 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 152 | 145 | $0 |
| 90662 | Influenza vaccine split virus, preservative free | 86 | 86 | $0 |
Insurance plans in this area (ZIP 02467)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | MA | 90670 | Pneumococcal vaccine for injection into muscle | 20 | 20 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | MA | |
| Internal Medicine | MA | |
| Internal Medicine | MA | |
| Family Practice | MA | |
| Internal Medicine | MA | |
| Internal Medicine | MA | |
| Internal Medicine | MA | |
| Family Practice | MA | |
| Internal Medicine | MA | |
| - | MA |
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