ANDREW FONG (MD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1679928394
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,583 PATHOLOGY in CA
Provider Addresses for ANDREW FONG (MD)
5555 W LAS POSITAS BLVD STE A7D
PLEASANTON, CA 945884000
Phone: (925) 847-3000
Type: Location
5700 SOUTHWYCK BLVD
TOLEDO, OH 436141509
Phone: (800) 288-8325
Fax: (419) 866-5453
Type: Mailing
1200, North State Street, Boyle Heights, Los Angeles, Los Angeles County, California, 90033, United States
CLINIC TOWER SUITE A7D
LOS ANGELES, CA 900331029
Phone: (916) 508-0371
Type: Location
1800 N CALIFORNIA ST
STOCKTON, CA 952046019
Phone: (209) 943-2000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $18.
Total Amount is formed as General ($18) + Research ($0) + Ownership ($0) = $18.
Last reported payment date: 2024-08-05 • Largest payer in this snapshot: PFIZER INC. ($18).
Total Amount
$18
General + Research + Ownership
Payments
1
Total payment records
General Amount
$18
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $18 |
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: 2021-08-30
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 |
|---|---|---|---|---|
| I20210830001449 | 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 | 714 | 352 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 52 | 21 | $0 |
| 88112 | Cell examination of specimen, selective cellular enhancement technique | 48 | 40 | $0 |
| 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 42 | 29 | $0 |
| 88313 | Special stained specimen slides to examine tissue including interpretation and report | 36 | 17 | $0 |
Insurance plans in this area (ZIP 94588)
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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 | |
| P A T H O L O G Y | OH | |
| P A T H O L O G Y | CA |
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