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AKBAR NASSIRY M.D., M.P.H.
NPI 1003259870
Hospitalist in Irvine, CA

Active since April 11, 2013PECOS EnrolledAccepts Medicare Assignment
4000 BARRANCA PARKWAY, STE. 250, IRVINE, CA 92604(949) 577-0047(909) 635-6085 Get Directions Write a Review

NPPES record last updated: May 29, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 29, 2020, Nov 2, 2016 (2 updates tracked since 2016).

About Akbar Nassiry M.d., M.p.h. NPPES

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

AKBAR NASSIRY M.D., M.P.H. (NPI 1003259870) is an individual hospitalist provider in Irvine, California, licensed in California (A125091) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS and is a graduate of Virginia Commonwealth University, School Of Medicine (2009).

NPPES Registry Identity

NPI1003259870
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameAKBAR NASSIRYCredential: M.D., M.P.H.
Location Address4000 BARRANCA PARKWAY, STE. 250Irvine, CA 92604-1713
Mailing Address4000 Barranca Parkway, Ste. 250Irvine, CA 92604-1713 · (949) 577-0047 · Fax (909) 635-6085
Phone(949) 577-0047
Fax(909) 635-6085
Sole ProprietorYes
Medical School CMSVirginia Commonwealth University, School Of MedicineGraduated 2009
Enumeration DateApril 11, 2013
Last NPPES UpdateMay 29, 20202 updates tracked since enumeration
NPPES CertifiedMay 29, 2020
✔ NPI 1003259870 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in CA · A125091
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License 0101253439 (VA), A125091 (CA)
Also ListedGeneral PracticeTaxonomy 208D00000X · License A125091 (CA)
4000 BARRANCA PARKWAY, Irvine, CA 92604
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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 and accepts Medicare assignment

Akbar Nassiry M.d., M.p.h. 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 ID4284859299
PECOS Enrollment IDI20140708001043
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 Akbar Nassiry reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Vitality Integrative Physicians
Same address
Critical Care Medicine
4000 BARRANCA PKWY STE 250
Irvine, CA 92604
  • Reassigned Medicare billing, California enrollment
  • 2 clinicians in this Medicare group
NPI 1194208322 (323) 451-2825

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 10

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
388 services68 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.
182 services39 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
102 services70 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
69 services51 patients
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310
A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.
59 services16 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
56 services52 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92604 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.

Referred Medical Equipment & Supplies CMS DME claims 2

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier33 claims33 services$14.88 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier33 claims33 services$67.52 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Akbar Nassiry's NPI number?

The NPI number for Akbar Nassiry is 1003259870. It was assigned to this individual provider in the NPPES registry on April 11, 2013.

Where is Akbar Nassiry located?

Akbar Nassiry practices at 4000 Barranca Parkway Ste. 250, Irvine, CA 92604. The listed phone number is (949) 577-0047.

What is Akbar Nassiry's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Akbar Nassiry enrolled in Medicare?

Yes. Akbar Nassiry 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 organization bills Medicare for Akbar Nassiry's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Akbar Nassiry reassigns Medicare benefits to Vitality Integrative Physicians (Irvine, 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 Akbar Nassiry'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 Akbar Nassiry was last updated on May 29, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.