DR. ARI J. GREEN M.D.
NPI 1700996964
Psychiatry & Neurology - Neurology in San Francisco, CA
About Dr. Ari J. Green M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ARI J. GREEN M.D. (NPI 1700996964) is an individual neurology provider in San Francisco, California, licensed in California (A83567) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Duke University School Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Dr. Ari J. Green M.d. 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
2Medicare enrollment records show Ari Green reassigns Medicare billing to 2 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
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Ari Green's NPI number?
The NPI number for Ari Green is 1700996964. It was assigned to this individual provider in the NPPES registry on August 30, 2006.
Where is Ari Green located?
Ari Green practices at 400 Parnassus Ave # A840, San Francisco, CA 94143. The listed phone number is (415) 353-2273.
What is Ari Green's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Ari Green enrolled in Medicare?
Yes. Ari Green 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 Ari Green's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ari Green reassigns Medicare benefits to 2 organizations: Ucsf Medical Group Business Services (San Francisco, CA) and University Of California San Francisco (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 Ari Green'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 Ari Green was last updated on January 29, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.
# Dr. Ari J. Green, M.D. · NPI 1700996964
Neurology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since August 30, 2006.
## Identity
- **NPI:** 1700996964 (Entity type: Individual)
- **Enumerated:** August 30, 2006
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** A83567 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 PARNASSUS AVE # A840, San Francisco, CA 94143-2202
- **Phone:** (415) 353-2273 · **Fax:** (415) 353-2898
## 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:** 2 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) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Duke University School Of Medicine, class of 2001
## Record status
- **NPPES last updated:** January 29, 2020
- **Other identifiers:** Medicaid 00A835670 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1700996964) · Data from the CMS NPPES public registry.