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JUSTIN COLLINGHAM M.D.
NPI 1346382314
Obstetrics & Gynecology - Maternal & Fetal Medicine in Walnut Creek, CA

Active since February 13, 2007PECOS Enrolled
1656 N CALIFORNIA BLVD, SUITE 300, WALNUT CREEK, CA 94596(925) 937-5214(925) 937-5936 Get Directions Write a Review

NPPES record last updated: December 15, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Justin Collingham M.d. NPPES

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

JUSTIN COLLINGHAM M.D. (NPI 1346382314) is an individual maternal & fetal medicine provider in Walnut Creek, California, licensed in California (A90070) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1346382314
Entity TypeIndividualMale
Primary Taxonomy207VM0101X
Provider Legal NameJUSTIN COLLINGHAMCredential: M.D.
Location Address1656 N CALIFORNIA BLVD, SUITE 300Walnut Creek, CA 94596-4180
Mailing AddressPo Box 9017Walnut Creek, CA 94596-9001 · (925) 952-2828 · Fax (925) 952-2850
Phone(925) 937-5214
Fax(925) 937-5936
Sole ProprietorNo
Enumeration DateFebruary 13, 2007
Last NPPES UpdateDecember 15, 2021
✔ NPI 1346382314 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
License✔ Licensed in CA · A90070
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
1656 N CALIFORNIA BLVD, Walnut Creek, CA 94596
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Other Identifiers 1

Medicaid00A900700CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Justin Collingham 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 Reassignment

Medicare enrollment records show Justin Collingham reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
16 mi
Internal Medicine
901 NEVIN
Richmond, CA 94801
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1235226531 (510) 307-1555

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94596 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
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 4

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

MRS. RACHAEL MARIE CABREIRA MSN-FNP-C
Nurse Practitioner (Family)
1656 N CALIFORNIA BLVD, 115
WALNUT CREEK, CA 94596
Contra Costa County (925) 941-7900
MRS. NANCY ELIZABETH COOK NP
Nurse Practitioner (Adult Health)
1656 N CALIFORNIA BLVD, SUITE 300
WALNUT CREEK, CA 94596
Contra Costa County (502) 417-4344
ROSA HYE-KYUNG WON M.D.
Obstetrics & Gynecology (Maternal & Fetal Medicine)
1656 N CALIFORNIA BLVD, SUITE 300
WALNUT CREEK, CA 94596
Contra Costa County (925) 941-7955
DR. RICHARD L WEINSTEIN M.D.
Internal Medicine
1656 N CALIFORNIA BLVD, SUITE 200
WALNUT CREEK, CA 94596
Contra Costa County (925) 952-2888

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 Justin Collingham's NPI number?

The NPI number for Justin Collingham is 1346382314. It was assigned to this individual provider in the NPPES registry on February 13, 2007.

Where is Justin Collingham located?

Justin Collingham practices at 1656 N California Blvd Suite 300, Walnut Creek, CA 94596. The listed phone number is (925) 937-5214.

What is Justin Collingham's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is Justin Collingham enrolled in Medicare?

Yes. Justin Collingham is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Justin Collingham's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Justin Collingham reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, CA). The 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 Justin Collingham'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 Justin Collingham was last updated on December 15, 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.