ARON R BAUM PA-C
NPI 1255851119
Physician Assistant in Mill Valley, CA

Active since June 22, 2017PECOS Enrolled
750 REDWOOD HWY FRONTAGE RD STE 1204, MILL VALLEY, CA 94941(415) 384-4778(415) 384-4779 Get Directions Write a Review

NPPES record last updated: July 1, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 9, 2020, Jun 22, 2017 (2 updates tracked since 2017).

About Aron R Baum Pa-c NPPES

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

ARON R BAUM PA-C (NPI 1255851119) is an individual physician assistant in Mill Valley, California and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1255851119
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameARON R BAUMCredential: PA-C
Location Address750 REDWOOD HWY FRONTAGE RD STE 1204Mill Valley, CA 94941-2483
Mailing Address2238 Geary BlvdSan Francisco, CA 94115-3416
Fax(415) 384-4779
Sole ProprietorNo
Enumeration DateJune 22, 2017
Last NPPES UpdateJuly 1, 20222 updates tracked since enumeration
NPPES CertifiedJuly 1, 2022
NPI 1255851119 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
750 REDWOOD HWY FRONTAGE RD STE 1204, Mill Valley, CA 94941

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Aron R Baum Pa-c 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94941 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.67 typical visit price
range $69.07 – $202.63
Typical copayment $26.16 (range $17.26 – $50.65)
Most-billed visit code 99203
Established Patient
$85.00 typical visit price
range $23.44 – $166.64
Typical copayment $21.25 (range $5.86 – $41.66)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

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

Emergency Medicine
750 REDWOOD HWY FRONTAGE RD STE 1204
MILL VALLEY, CA 94941
Physician Assistant
750 REDWOOD HWY FRONTAGE RD STE 1204
MILL VALLEY, CA 94941
Nurse Practitioner (Family)
750 REDWOOD HWY FRONTAGE RD STE 1204
MILL VALLEY, CA 94941
Physician Assistant
750 REDWOOD HWY FRONTAGE RD STE 1204
MILL VALLEY, CA 94941
Physician Assistant (Medical)
750 REDWOOD HWY FRONTAGE RD STE 1204
MILL VALLEY, CA 94941
Nurse Practitioner (Pediatrics)
750 REDWOOD HWY FRONTAGE RD STE 1204
MILL VALLEY, CA 94941

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 Aron Baum's NPI number?

The NPI number for Aron Baum is 1255851119. It was assigned to this individual provider in the NPPES registry on June 22, 2017.

Where is Aron Baum located?

Aron Baum practices at 750 Redwood Hwy Frontage Rd Ste 1204, Mill Valley, CA 94941. The listed phone number is (415) 384-4778.

What is Aron Baum's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Aron Baum enrolled in Medicare?

Yes. Aron Baum is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Aron Baum was last updated on July 1, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.