ALLYSON RICHARDSON MD
NPI 1578024014
Internal Medicine - Gastroenterology in San Francisco, CA
About Allyson Richardson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLYSON RICHARDSON MD (NPI 1578024014) is an individual gastroenterology provider in San Francisco, California, licensed in California (A202870) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses
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
Allyson Richardson Md 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 Allyson Richardson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 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 94143 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.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
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 Allyson Richardson's NPI number?
The NPI number for Allyson Richardson is 1578024014. It was assigned to this individual provider in the NPPES registry on March 27, 2019.
Where is Allyson Richardson located?
Allyson Richardson practices at 513 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 502-4444.
What is Allyson Richardson's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Allyson Richardson enrolled in Medicare?
Yes. Allyson Richardson 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 Allyson Richardson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allyson Richardson reassigns Medicare benefits to 3 organizations: Ucsf Medical Group Business Services (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Regents Of The University Of California (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 Allyson Richardson'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 Allyson Richardson was last updated on October 31, 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.
# Allyson Richardson, MD · NPI 1578024014
Gastroenterology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since March 27, 2019.
## Identity
- **NPI:** 1578024014 (Entity type: Individual)
- **Enumerated:** March 27, 2019
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** A202870 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 513 PARNASSUS AVE, San Francisco, CA 94143-2205
- **Phone:** (415) 502-4444
## 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): Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); University Of California San Francisco (NPI 1164512851, San Francisco, CA); Regents Of The University Of California (NPI 1376613943, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** October 31, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1578024014) · Data from the CMS NPPES public registry.