1. Home
  2. Directory
  3. California
  4. San Francisco
  5. Pediatrics
  6. NPI Profile

ARIS HAN OATES M.D.
NPI 1013233766
Pediatrics - Pediatric Nephrology in San Francisco, CA

Active since April 19, 2010PECOS Enrolled
UC SAN FRANCISCO, 505 PARNASSUS - PEDIATRICS RESIDENCY PROGRAM, SAN FRANCISCO, CA 94143(415) 476-6245 Get Directions Write a Review

NPPES record last updated: March 24, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Aris Han Oates M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ARIS HAN OATES M.D. (NPI 1013233766) is an individual pediatric nephrology provider in San Francisco, California, licensed in California (A120363) and active in the NPI registry since April 2010. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1013233766
Entity TypeIndividualMale
Primary Taxonomy2080P0210X
Provider Legal NameARIS HAN OATESCredential: M.D.
Location AddressUC SAN FRANCISCO, 505 PARNASSUS - PEDIATRICS RESIDENCY PROGRAMSan Francisco, CA 94143-0001
Mailing AddressUc San Francisco, 505 Parnassus - Pediatrics Residency ProgramSan Francisco, CA 94143-0001
Phone(415) 476-6245
Sole ProprietorNo
Enumeration DateApril 19, 2010
Last NPPES UpdateMarch 24, 2021
NPPES CertifiedMarch 24, 2021
✔ NPI 1013233766 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0210X
License✔ Licensed in CA · A120363
Definition
A pediatrician who deals with the normal and abnormal development and maturation of the kidney and urinary tract, the mechanisms by which the kidney can be damaged, the evaluation and treatment of renal diseases, fluid and electrolyte abnormalities, hypertension and renal replacement therapy.
Also ListedPediatricsTaxonomy 208000000X · License A120363 (CA)
UC SAN FRANCISCO, San Francisco, CA 94143
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Aris Han Oates M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Aris Oates reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ucsf Pediatrics Associates
Same address
Pediatrics
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 1,159 clinicians in this Medicare group
NPI 1376614016 (415) 353-2000
University Of California San Francisco
Same address
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1346329380 (415) 353-2161
Ucsf Medical Group Business Services
Same address
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KENNETH LOH MD
Surgery
UC SAN FRANCISCO, 513 PARNASSUS AVENUE, S321
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1239

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 Aris Oates's NPI number?

The NPI number for Aris Oates is 1013233766. It was assigned to this individual provider in the NPPES registry on April 19, 2010.

Where is Aris Oates located?

Aris Oates practices at Uc San Francisco 505 Parnassus - Pediatrics Residency Program, San Francisco, CA 94143. The listed phone number is (415) 476-6245.

What is Aris Oates's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Nephrology, with taxonomy code 2080P0210X.

Is Aris Oates enrolled in Medicare?

Yes. Aris Oates is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Aris Oates's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aris Oates reassigns Medicare benefits to 3 organizations: Ucsf Pediatrics Associates (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (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 Aris Oates'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 Aris Oates was last updated on March 24, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.