DR. DIANA HARRIS MAHAR M.D.
NPI 1801815535
Pediatrics in Pinole, CA

Active since July 19, 2006PECOS Enrolled
1301 PINOLE VALLEY RD, DEPT. OF PEDIATRICS, PINOLE, CA 94564(510) 243-4213 Get Directions Write a Review

NPPES record last updated: December 14, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Diana Harris Mahar M.d. NPPES

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

DR. DIANA HARRIS MAHAR M.D. (NPI 1801815535) is an individual pediatrics provider in Pinole, California, licensed in California (A77346) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1801815535
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. DIANA HARRIS MAHARCredential: M.D.
Location Address1301 PINOLE VALLEY RD, DEPT. OF PEDIATRICSPinole, CA 94564-1384
Mailing Address1301 Pinole Valley RdPinole, CA 94564-1384 · (510) 243-4213
Sole ProprietorNo
Enumeration DateJuly 19, 2006
Last NPPES UpdateDecember 14, 2021
NPI 1801815535 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License Licensed in CA · A77346
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
1301 PINOLE VALLEY RD, Pinole, CA 94564

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Dr. Diana Harris Mahar 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94564 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
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 18

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

Pharmacist
1301 PINOLE VALLEY RD
PINOLE, CA 94564
Neuromusculoskeletal Medicine & OMM
1301 PINOLE VALLEY RD
PINOLE, CA 94564
Pharmacist
1301 PINOLE VALLEY RD
PINOLE, CA 94564
Family Medicine
1301 PINOLE VALLEY RD
PINOLE, CA 94564
Pediatrics
1301 PINOLE VALLEY RD
PINOLE, CA 94564
Family Medicine
1301 PINOLE VALLEY RD
PINOLE, CA 94564
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
1301 PINOLE VALLEY RD
PINOLE, CA 94564
Obstetrics & Gynecology
1301 PINOLE VALLEY RD, WOMEN'S HEALTH
PINOLE, CA 94564

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 Diana Mahar's NPI number?

The NPI number for Diana Mahar is 1801815535. It was assigned to this individual provider in the NPPES registry on July 19, 2006.

Where is Diana Mahar located?

Diana Mahar practices at 1301 Pinole Valley Rd Dept. Of Pediatrics, Pinole, CA 94564. The listed phone number is (510) 243-4213.

What is Diana Mahar's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Diana Mahar enrolled in Medicare?

Yes. Diana Mahar is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Diana Mahar was last updated on December 14, 2021. 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.