STEPHEN MERJAVY MD
NPI 1326477993
Family Medicine in Martinez, CA

Q: What is Stephen Merjavy's NPI number?

The NPI number for Stephen Merjavy is 1326477993. It was assigned to this individual provider in the NPPES registry on November 5, 2013.

Q: What is Stephen Merjavy's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Merjavy was last updated on November 26, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.

Active since November 05, 2013PECOS Enrolled

2500 ALHAMBRA AVE, MARTINEZ, CA 94553(925) 370-5000 Get Directions Write a Review

NPPES record last updated: November 26, 2013. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Stephen Merjavy Md NPPES

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

STEPHEN MERJAVY MD (NPI 1326477993) is an individual family medicine provider in Martinez, California, licensed in California (127852) and active in the NPI registry since November 2013. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1326477993

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameSTEPHEN MERJAVYCredential: MD

Location Address2500 ALHAMBRA AVEMartinez, CA 94553-3156

Mailing Address2500 Alhambra AveMartinez, CA 94553-3156

Phone(925) 370-5000

Sole ProprietorYes

Enumeration DateNovember 5, 2013

Last NPPES UpdateNovember 26, 2013

✔ NPI 1326477993 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · 127852

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

2500 ALHAMBRA AVE, Martinez, CA 94553

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stephen Merjavy Md 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

Medicare enrollment records show Stephen Merjavy reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Contra Costa County

Same address

General Acute Care Hospital

2500 ALHAMBRA AVE
Martinez, CA 94553

Reassigned Medicare billing, California enrollment
530 clinicians in this Medicare group

NPI 1386719086 (925) 370-5955

East Bay Aids Center Medical Group Inc

15 mi

Infectious Disease

3100 SUMMIT ST, 2ND FLOOR
Oakland, CA 94609

Reassigned Medicare billing, California enrollment
9 clinicians in this Medicare group

NPI 1689600314 (510) 869-8400

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 94553 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan

Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…

100%73 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

9 suppliers13 claims39 services$6.29 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

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

JOHN S HAWKINS

Family Medicine