MAGGIE MEI KEI LAM (MD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1659483550
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,584 PATHOLOGY in CA
Provider Addresses for MAGGIE MEI KEI LAM (MD)
300 PASTEUR DR
STANFORD, CA 943052200
Phone: (650) 723-4000
Type: Mailing
University of California Medical Center, 505, Parnassus Avenue, Cole Valley, San Francisco, California, 94143, United States
RM. M590
SAN FRANCISCO, CA 941432204
Phone: (650) 922-4460
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $44.
Total Amount is formed as General ($44) + Research ($0) + Ownership ($0) = $44.
Last reported payment date: 2023-04-26 • Largest payer in this snapshot: bioMerieux Inc ($23).
Total Amount
$44
General + Research + Ownership
Payments
2
Total payment records
General Amount
$44
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-04-26
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| bioMerieux Inc | $23 |
| Hologic Sales and Service, LLC | $21 |
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: 2009-09-15
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 |
|---|---|---|---|---|
| I20090915000383 | 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 | 780 | 307 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 119 | 105 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 108 | 42 | $0 |
| 88360 | Microscopic genetic analysis of tumor, manual | 74 | 22 | $0 |
| 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 36 | 13 | $0 |
Insurance plans in this area (ZIP 94305)
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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 | 114 | 104 |
| PATHOLOGY | CA | 88312 | Special stained specimen slides to identify organisms including interpretation and report | 63 | 37 |
| PATHOLOGY | CA | 88342 | Tissue or cell analysis by immunologic technique | 140 | 124 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| O B S T E T R I C S/ G Y N E C O L O G Y | TX | |
| - | CA | |
| - | CA | |
| - | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| Hematology, Medical Oncology | NY | |
| Certified Registered Nurse Anesthetist (Crna) | TX | |
| Nurse Practitioner | CA | |
| Nurse Practitioner | CA | |
| Neuropsychiatry, Neurology | CA |
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