SUNANDA CHATTERJEE (MD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1265491641
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for SUNANDA CHATTERJEE (MD)
PO BOX 10076
VAN NUYS, CA 914100076
Phone: (805) 578-8300
Fax: (805) 578-8950
Type: Mailing
Greater El Monte Community Hospital, 1701, Santa Anita Avenue, South El Monte, Los Angeles County, California, 91733, United States
SOUTH EL MONTE, CA 917333482
Phone: (626) 570-6597
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.
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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: 2003-11-13
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20031113000445 | I | Pathology | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | 438 | 230 | $0 |
| 88313 | Special stained specimen slides to examine tissue including interpretation and report | 247 | 120 | $0 |
| 88312 | Special stained specimen slides to identify organisms including interpretation and report | 197 | 121 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 123 | 33 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 64 | 54 | $0 |
Insurance plans in this area (ZIP 91410)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PATHOLOGY | CA | 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 77 | 75 |
| PATHOLOGY | CA | 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 97 | 67 |
| PATHOLOGY | CA | 88312 | Special stained specimen slides to identify organisms including interpretation and report | 200 | 170 |
| PATHOLOGY | CA | 88342 | Tissue or cell analysis by immunologic technique | 86 | 81 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | CA | |
| - | CA | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA |
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