Chrisy Mafnas, M.D.
NPI 1922328541 · Anatomic Pathology Physician · Santa Clara, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chrisy Mafnas, M.D. is a Anatomic Pathology Physician provider in Santa Clara, CA (NPI 1922328541).
Provider details
- NPI number
- 1922328541
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-04
- Last updated
- 2025-08-14
- Certified
- 2025-08-14
Frequently asked questions
- What is Chrisy Mafnas's NPI number?
- Chrisy Mafnas's National Provider Identifier (NPI) is 1922328541, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chrisy Mafnas's specialty?
- Chrisy Mafnas is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Chrisy Mafnas located?
- Chrisy Mafnas's practice location on file with NPPES is 700 Lawrence Expy, Santa Clara, CA 95051-5173.
- What is Chrisy Mafnas's phone number?
- The practice phone number listed in the NPPES registry for Chrisy Mafnas is (408) 851-1000.
- Does Chrisy Mafnas accept Medicare?
- Chrisy Mafnas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chrisy Mafnas's NPI active?
- Yes — Chrisy Mafnas's NPI (1922328541) is active in the NPPES registry as of the last update on 2025-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.