John Lam, M.D.
NPI 1821013012 · Anatomic Pathology & Clinical Pathology Physician · Jackson, MS
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Lam, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Jackson, MS (NPI 1821013012).
Provider details
- NPI number
- 1821013012
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 18833 (MS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,127 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 287 | $25 |
| Blood Smear Interpretation By Physician With Written Report85060 | 124 | $22 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 122 | $33 |
| Flow Cytometry Technique for Dna Or Cell Analysis, 16 Or More Markers88189 | 101 | $75 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 97 | $31 |
| Preparation of Tissue for Examination By Removing Any Calcium Present88311 | 79 | $11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$53 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-12
- Last updated
- 2016-01-06
Frequently asked questions
- What is John Lam's NPI number?
- John Lam's National Provider Identifier (NPI) is 1821013012, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Lam's specialty?
- John Lam is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is John Lam located?
- John Lam's practice location on file with NPPES is 2500 N State St, Jackson, MS 39216-4500.
- What is John Lam's phone number?
- The practice phone number listed in the NPPES registry for John Lam is (601) 984-1530.
- Does John Lam accept Medicare?
- John Lam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Lam's NPI active?
- Yes — John Lam's NPI (1821013012) is active in the NPPES registry as of the last update on 2016-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.