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MEGAN JOHNSTONE HARDIN MPA, PA-C
NPI 1831411453
Physician Assistant in Walnut Creek, CA

Active since February 23, 2010PECOS Enrolled
1479 YGNACIO VALLEY RD, SUITE 209, WALNUT CREEK, CA 94598(925) 932-9389(925) 256-9066 Get Directions Write a Review

NPPES record last updated: July 2, 2015. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Megan Johnstone Hardin Mpa, Pa-c NPPES

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

MEGAN JOHNSTONE HARDIN MPA, PA-C (NPI 1831411453) is an individual physician assistant in Walnut Creek, California, licensed in California (PA20855) and active in the NPI registry since February 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1831411453
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMEGAN JOHNSTONE HARDINCredential: MPA, PA-C
Location Address1479 YGNACIO VALLEY RD, SUITE 209Walnut Creek, CA 94598-2986
Mailing Address1479 Ygnacio Valley Rd, Suite 209Walnut Creek, CA 94598-2986 · (925) 932-9389 · Fax (925) 256-9066
Phone(925) 932-9389
Fax(925) 256-9066
Sole ProprietorNo
Enumeration DateFebruary 23, 2010
Last NPPES UpdateJuly 2, 2015
✔ NPI 1831411453 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in CA · PA20855
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.
1479 YGNACIO VALLEY RD, Walnut Creek, CA 94598
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Other Names 1

Former Name (1)Megan Ann Johnstone Mpa, Pa-c

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Megan Johnstone Hardin Mpa, 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 94598 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
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
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.

KATHERINE A WESTBROOK N.P.
Nurse Practitioner
1479 YGNACIO VALLEY RD
WALNUT CREEK, CA 94598
Contra Costa County (925) 941-4154
LI CHEN N.P.
Nurse Practitioner (Adult Health)
1479 YGNACIO VALLEY RD
WALNUT CREEK, CA 94598
Contra Costa County (925) 941-4058
GITA J. PATEL, DPM, INC.
Podiatrist (Foot & Ankle Surgery)
1479 YGNACIO VALLEY RD, SUITE 102
WALNUT CREEK, CA 94598
Contra Costa County (925) 765-9719
DR. JULIA LEE DDS
Dentist (General Practice)
1479 YGNACIO VALLEY RD, SUITE 105
WALNUT CREEK, CA 94598
Contra Costa County (925) 682-8810
PEDIATRIC RESOURCE, INC.
Pediatrics
1479 YGNACIO VALLEY RD, SUITE 208
WALNUT CREEK, CA 94598
Contra Costa County (925) 634-9704
BALDOMERO DE LEON JR. M.D.
Internal Medicine
1479 YGNACIO VALLEY RD, SUITE #201
WALNUT CREEK, CA 94598
Contra Costa County (925) 932-1018

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 Megan Hardin's NPI number?

The NPI number for Megan Hardin is 1831411453. It was assigned to this individual provider in the NPPES registry on February 23, 2010. The provider is also known as Megan Ann Johnstone Mpa, Pa-C.

Where is Megan Hardin located?

Megan Hardin practices at 1479 Ygnacio Valley Rd Suite 209, Walnut Creek, CA 94598. The listed phone number is (925) 932-9389.

What is Megan Hardin's specialty?

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

Is Megan Hardin enrolled in Medicare?

Yes. Megan Hardin is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Megan Hardin was last updated on July 2, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.