DR. JUDY A ALONZO (MD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1124040787
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,583 PATHOLOGY in CA
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Provider Addresses for DR. JUDY A ALONZO (MD)
383, East Grand Avenue, South San Francisco, San Mateo County, California, 94080, United States
SUITE A
SOUTH SAN FRANCISCO, CA 940806234
Phone:
Type: Mailing
El Camino Real, Burlingame, San Mateo County, California, 94101, United States
PATHOLOGY DEPT
BURLINGAME, CA 940103205
Phone: (650) 696-5611
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: 2004-11-16
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 |
|---|---|---|---|---|
| I20041116001131 | 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 | 1,289 | 673 | $0 |
| 84165 | Protein measurement, serum | 297 | 262 | $0 |
| 88300 | Pathology examination of tissue using a microscope, limited examination | 164 | 162 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 152 | 49 | $0 |
| 86334 | Immunologic analysis technique on serum (immunofixation) | 133 | 75 | $0 |
Insurance plans in this area (ZIP 94080)
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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 | 26 | 23 |
| PATHOLOGY | CA | 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 16 | 15 |
| PATHOLOGY | CA | 88342 | Tissue or cell analysis by immunologic technique | 34 | 31 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| 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 | |
| - | 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 | OH | |
| 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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