MAX DAVID FARBER MS, CNM, WHNP-BC, RN
NPI 1972227791
Advanced Practice Midwife in San Mateo, CA
About Max David Farber Ms, Cnm, Whnp-bc, Rn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAX DAVID FARBER MS, CNM, WHNP-BC, RN (NPI 1972227791) is an individual advanced practice midwife in San Mateo, California, licensed in California (236289) and active in the NPI registry since September 2022. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Francisco, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Max David Farber Ms, Cnm, Whnp-bc, Rn is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Max Farber reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Mateo, CA 94403
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1831268580 (California)
- 46 clinicians in this Medicare group
San Francisco, CA 94124
- Reassigned Medicare billing, California enrollment
- 1,573 clinicians in this Medicare group
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 842 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94403 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Max Farber's NPI number?
The NPI number for Max Farber is 1972227791. It was assigned to this individual provider in the NPPES registry on September 27, 2022.
Where is Max Farber located?
Max Farber practices at 222 W 39th Ave, San Mateo, CA 94403. The listed phone number is (650) 573-2222.
What is Max Farber's specialty?
The primary specialty registered for this NPI is Advanced Practice Midwife with taxonomy code 367A00000X.
Is Max Farber enrolled in Medicare?
Yes. Max Farber is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Max Farber's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Max Farber reassigns Medicare benefits to 3 organizations: County Of San Mateo (San Mateo, CA), City & County Of San Francisco (San Francisco, CA) and University Of California Sfgh Medical Group (San Francisco, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Max Farber's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Max Farber was last updated on October 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Max David Farber, MS, CNM, WHNP-BC, RN · NPI 1972227791
Advanced Practice Midwife physician in San Mateo, California. Individual provider, active in the CMS NPPES registry since September 27, 2022.
## Identity
- **NPI:** 1972227791 (Entity type: Individual)
- **Enumerated:** September 27, 2022
- **Primary specialty:** Advanced Practice Midwife · taxonomy 367A00000X
- **State license:** 236289 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 222 W 39TH AVE, San Mateo, CA 94403-4364
- **Phone:** (650) 573-2222
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): County Of San Mateo (NPI 1306907928, San Mateo, CA); City & County Of San Francisco (NPI 1184351082, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1174598296, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** October 10, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1972227791) · Data from the CMS NPPES public registry.