JENNIFER GRAYZAR M.D.
NPI 1336160530
Emergency Medicine in San Rafael, CA

Active since July 22, 2006PECOS Enrolled
94.62/100
CMS Quality Rating
4000 CIVIC CENTER DR STE 206, SAN RAFAEL, CA 94903(415) 925-8865 Get Directions Write a Review

NPPES record last updated: August 13, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Jennifer Grayzar M.d. NPPES

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

JENNIFER GRAYZAR M.D. (NPI 1336160530) is an individual emergency medicine provider in San Rafael, California, licensed in California (A65858) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in Concord.

NPPES Registry Identity

NPI1336160530
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameJENNIFER GRAYZARCredential: M.D.
Location Address4000 CIVIC CENTER DR STE 206San Rafael, CA 94903-5233
Mailing Address2100 Powell St, Suite 900Emeryville, CA 94608-1826 · (510) 350-2600 · Fax (510) 879-9100
Sole ProprietorNo
Enumeration DateJuly 22, 2006
Last NPPES UpdateAugust 13, 2025
NPPES CertifiedAugust 13, 2025
NPI 1336160530 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License Licensed in CA · A65858
Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

4000 CIVIC CENTER DR STE 206, San Rafael, CA 94903

Secondary Practice Location 1

Location 12540 East StConcord, CA 94520-1906 · Phone (925) 682-8200

Other Identifiers 1

Medicaid00A658580CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Jennifer Grayzar 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.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit for life threatening or functioning severity 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
363 services348 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
132 services126 patients
Emergency department visit for problem of high severity 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
129 services126 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
75 services74 patients
Emergency department visit for problem of moderate severity 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
55 services55 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94903 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
$119.61 typical visit price
range $23.44 – $166.64
Typical copayment $29.90 (range $5.86 – $41.66)
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.

94.62/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality76.67
Improvement Activities40
Cost97.14

Other Providers at the Same Location NPPES

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

Clinic/Center (Rehabilitation)
4000 CIVIC CENTER DR STE 206
SAN RAFAEL, CA 94903

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1336160530, enumerated as an "individual" on July 22, 2006.

The provider is located at 4000 CIVIC CENTER DR STE 206 SAN RAFAEL, CA 94903 and the phone number is (415) 925-8865.

Emergency Medicine with taxonomy code 207P00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.