Maxwell Fung, MD
NPI 1134178973 · Dermatopathology Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maxwell Fung, MD is a Dermatopathology Physician provider in Sacramento, CA (NPI 1134178973).
Provider details
- NPI number
- 1134178973
- Entity type
- Individual
- Primary specialty
- Dermatopathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G80754 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
8,300 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 6,863 | $38 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 364 | $11 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 291 | $35 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 288 | $28 |
| Antibody Evaluation, Each Additional Single Antibody Stain Procedure88350 | 231 | $29 |
| Surgical Pathology Consultation and Report on Referred Slides Prepared Elsewhere88321 | 86 | $84 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$370 across 3 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
- 2006-05-09
- Last updated
- 2007-11-07
Frequently asked questions
- What is Maxwell Fung's NPI number?
- Maxwell Fung's National Provider Identifier (NPI) is 1134178973, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maxwell Fung's specialty?
- Maxwell Fung is listed in the NPPES registry with a primary specialty of Dermatopathology Physician (Allopathic & Osteopathic Physicians).
- Where is Maxwell Fung located?
- Maxwell Fung's practice location on file with NPPES is 3301 C St, Sacramento, CA 95816-3300.
- What is Maxwell Fung's phone number?
- The practice phone number listed in the NPPES registry for Maxwell Fung is (916) 734-6111.
- Does Maxwell Fung accept Medicare?
- Maxwell Fung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maxwell Fung's NPI active?
- Yes — Maxwell Fung's NPI (1134178973) is active in the NPPES registry as of the last update on 2007-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.