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DR. MEHRNAZ HOJJATI M. D.
NPI 1720029135
Internal Medicine - Rheumatology in Orange, CA

Active since June 08, 2006PECOS EnrolledAccepts Medicare Assignment
96.04/100
CMS Quality Rating
2501 E CHAPMAN AVE STE 301, ORANGE, CA 92869(714) 628-3230 Get Directions Write a Review

NPPES record last updated: November 28, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Mehrnaz Hojjati M. D. NPPES

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

DR. MEHRNAZ HOJJATI M. D. (NPI 1720029135) is an individual rheumatology provider in Orange, California, licensed in California (C131825) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Loma Linda, and is a graduate of Other (1998).

NPPES Registry Identity

NPI1720029135
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameDR. MEHRNAZ HOJJATICredential: M. D.
Location Address2501 E CHAPMAN AVE STE 301Orange, CA 92869-3204
Mailing Address2501 E Chapman Ave Ste 301Orange, CA 92869-3204 · (714) 628-3230
Phone(714) 628-3230
Sole ProprietorNo
Medical School CMSOtherGraduated 1998
Enumeration DateJune 8, 2006
Last NPPES UpdateNovember 28, 2023
NPPES CertifiedNovember 28, 2023
✔ NPI 1720029135 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
Licenses✔ Licensed in CA · C131825✔ Licensed in OH · 35096327
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
2501 E CHAPMAN AVE STE 301, Orange, CA 92869
Open in Google Maps ↗

Secondary Practice Location 1

Location 111234 Anderson St Ste 1516Loma Linda, CA 92354-2804 · Phone (909) 558-4909 ext. 3

Other Identifiers 1

Medicaid3111395OH

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mehrnaz Hojjati M. D. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3971576091
PECOS Enrollment IDI20141125001853
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

3

Medicare enrollment records show Mehrnaz Hojjati reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Providence Medical Foundation
2.2 mi
Hematology & Oncology
1010 W LA VETA AVE STE 200
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 1,699 clinicians in this Medicare group
NPI 1801443510 (714) 835-1800
Faculty Physicians And Surgeons Of Llusm
9.2 mi
Internal Medicine
16305 SAND CANYON AVE, # 220
Irvine, CA 92618
  • Reassigned Medicare billing, California enrollment
  • 2,584 clinicians in this Medicare group
NPI 1417400573 (909) 558-2480
County Of Riverside
15 mi
Community/Behavioral Health
2813 S MAIN ST FL 2
Corona, CA 92882
  • Reassigned Medicare billing, California enrollment
  • 336 clinicians in this Medicare group
NPI 1205090453 (951) 738-2400

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

Areas of Expertise CMS Part B claims 6

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

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
124 services49 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
48 services48 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
46 services33 patients
X-ray of foot, minimum of 3 views 73630
An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.
45 services24 patients
X-ray of hand, 2 views 73120
An X-ray of the hand, 2 views, is a non-invasive imaging test that uses a small amount of radiation to produce pictures of the bones in your hand. Two different angles are captured to provide a comprehensive view. This helps in diagnosing injuries or conditions affecting your hand.
42 services21 patients
X-ray of joint between lower spine and hip bone, 3 or more views 72202
This procedure involves taking X-ray images of the joint connecting your lower spine and hip bone from three or more angles. It helps in diagnosing conditions like arthritis or fractures. You'll be positioned carefully, and the X-ray machine will capture the images.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92869 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

96.04/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality84.91
Promoting Interoperability100
Improvement Activities40

Reported Quality Measures

Pneumococcal Vaccination Status for Older Adults
Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine
100%90 patients5/55-star benchmark: 100%
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
Percentage of patients aged 12 years and older screened for depression on the date of the encounter using an age appropriate standardized depression screening tool AND if positive, a follow-up plan is documented on the date of the positive screen
100%112 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.

Other Providers at the Same Location NPPES

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

NILANTHI GUNAWARDANE M.D.
Dermatology
2501 E CHAPMAN AVE STE 301
ORANGE, CA 92869
Orange County (714) 628-3230

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 Mehrnaz Hojjati's NPI number?

The NPI number for Mehrnaz Hojjati is 1720029135. It was assigned to this individual provider in the NPPES registry on June 8, 2006.

Where is Mehrnaz Hojjati located?

Mehrnaz Hojjati practices at 2501 E Chapman Ave Ste 301, Orange, CA 92869. The listed phone number is (714) 628-3230.

What is Mehrnaz Hojjati's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Mehrnaz Hojjati enrolled in Medicare?

Yes. Mehrnaz Hojjati is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Mehrnaz Hojjati's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mehrnaz Hojjati reassigns Medicare benefits to 3 organizations: Providence Medical Foundation (Orange, CA), Faculty Physicians And Surgeons Of Llusm (Irvine, CA) and County Of Riverside (Corona, CA). Each 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 Mehrnaz Hojjati'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 Mehrnaz Hojjati was last updated on November 28, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.