REZA MAHROU M.D.
NPI 1255376810
Anesthesiology - Pain Medicine in Irvine, CA

Q: What is Reza Mahrou's NPI number?

The NPI number for Reza Mahrou is 1255376810. It was assigned to this individual provider in the NPPES registry on June 18, 2006. The provider is also known as Reza Mahrou M.D..

Q: What is Reza Mahrou's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Q: When was this NPI record last updated?

The NPPES record for Reza Mahrou was last updated on February 29, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 June 18, 2006PECOS EnrolledAccepts Medicare Assignment

27.86/100

CMS Quality Rating

113 WATERWORKS WAY, SUITE 345, IRVINE, CA 92618(949) 872-2400(949) 872-2401 Get Directions Write a Review

NPPES record last updated: February 29, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Reza Mahrou M.d. NPPES

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

REZA MAHROU M.D. (NPI 1255376810) is an individual pain medicine provider in Irvine, California, licensed in California (A76865) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1999).

NPPES Registry Identity

NPI1255376810

Entity TypeIndividualMale

Primary Taxonomy207LP2900X

Provider Legal NameREZA MAHROUCredential: M.D.

Location Address113 WATERWORKS WAY, SUITE 345Irvine, CA 92618-3167

Mailing AddressPo Box 54788Irvine, CA 92619-4788 · (949) 872-2400 · Fax (949) 872-2401

Phone(949) 872-2400

Fax(949) 872-2401

Sole ProprietorNo

Medical School CMSOtherGraduated 1999

Enumeration DateJune 18, 2006

Last NPPES UpdateFebruary 29, 2012

✔ NPI 1255376810 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207LP2900X

License✔ Licensed in CA · A76865

Definition

An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.

113 WATERWORKS WAY, Irvine, CA 92618

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Other Names 1

Professional Name (2)Reza Mahrou M.d.

Other Identifiers 4

Medicare ID-Type UnspecifiedW18108CA

Medicare PINDL262ZCA

OtherA76865CA · State License

Medicare UPINI20086CA

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

Reza Mahrou 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 ID8527020239

PECOS Enrollment IDI20041104000707

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 Reza Mahrou reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pain Care Providers A Professional Medical Corporation

Same address

Interventional Pain Medicine

113 WATERWORKS WAY, SUITE 345
Irvine, CA 92618

Reassigned Medicare billing, California enrollment
Also billed through NPI 1861760670 (California)
2 clinicians in this Medicare group

NPI 1578627022 (949) 872-2400

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 16

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 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.

398 services108 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

241 services77 patients

Anesthesia for nerve block and injection procedure, prone position 01992

Anesthesia for nerve block and injection is a procedure to numb specific areas, reducing pain. You'll be positioned face-down (prone) for optimal access to the treatment area. The anesthetic is injected near the nerve, blocking pain signals to the brain.

198 services91 patients

Testing for presence of drug, read by direct observation 80305

Testing for the presence of drugs involves collecting a sample, usually urine, which is then analyzed for specific substances. The process is monitored directly to ensure accuracy and integrity. This test helps to confirm if drugs are present in your system.

159 services91 patients

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.

123 services66 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.

67 services66 patients

Injection of substance into lower spine canal using imaging guidance 62323

This procedure involves injecting a substance into your lower spine canal, guided by real-time images. It's done to diagnose or treat various conditions. You may feel slight discomfort, but it's generally safe and can provide valuable information for your treatment plan.

66 services44 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

53 services53 patients

Aspiration and/or injection of fluid large joint using ultrasound guidance 20611

This procedure involves using ultrasound technology to accurately locate a large joint, usually the knee or shoulder. A needle is then inserted to either extract fluid (aspiration) or inject medication. The ultrasound helps ensure precision and safety.

29 services19 patients

Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance 27096

This procedure involves injecting medicine into the joint where your lower spine meets your hip bone. Using special imaging technology, the doctor ensures the medicine is delivered accurately. This can help reduce pain and inflammation in that area.

28 services22 patients

Injection of lower or sacral spine facet joint using imaging guidance, single level 64493

This procedure involves injecting medication into the facet joint in your lower back or sacral spine. It's done under imaging guidance to ensure accuracy. The aim is to alleviate pain and inflammation. It's a safe, often effective method for managing spinal discomfort.

20 services14 patients

Injection of lower or sacral spine facet joint using imaging guidance, second level 64494

This procedure involves injecting medication into the facet joints of your lower or sacral spine to manage pain. Imaging guidance ensures accurate placement. It's the second level, meaning it's done on two different joint levels.

20 services14 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

19 services16 patients

Injection of substance into middle or upper spine canal using imaging guidance 62321

This procedure involves injecting a substance into your middle or upper spine canal. It's performed under imaging guidance to ensure accuracy. The substance can help diagnose or treat various conditions, providing relief from symptoms.

18 services16 patients

Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 64483

This procedure involves injecting a mix of numbing and anti-inflammatory medication into a specific nerve root in the lower back. It helps manage pain and reduce inflammation. The process is guided by imaging technology for precision.

16 services12 patients

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.

13 services13 patients

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.

27.86/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

Improvement Activities

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.

ADRIAN ACOSTA DDS A PROFESSIONAL DENTAL CORP

Dentist (General Practice)

113 WATERWORKS WAY, 355
IRVINE, CA 92618

Orange County (562) 356-0948

DIANE BOVAL DDS A COMMUNITY DENTAL CORP.

Dentist (General Practice)

113 WATERWORKS WAY, SUITE 355
IRVINE, CA 92618

Orange County (949) 284-2913

AMIR B RAFIZAD M.D.

Anesthesiology (Pain Medicine)

113 WATERWORKS WAY, SUITE 345
IRVINE, CA 92618

Orange County (949) 872-2400

ZEN CARE CHIROPRACTIC WELLNESS CENTER

Chiropractor (Rehabilitation)

113 WATERWORKS WAY, #115
IRVINE, CA 92618

Orange County (949) 727-1772

MR. WASSIEM ABDELMALEK PHYSICAL THERAPIST

Physical Therapist

113 WATERWORKS WAY, #230
IRVINE, CA 92618

Orange County (949) 770-1911

SOGOL J SAGHARI MD A PROFESSIONAL CORPORATION

Dermatology

113 WATERWORKS WAY, SUITE 235
IRVINE, CA 92618

Orange County (310) 493-6649

KANG CHIROPRACTIC INC.

Chiropractor

113 WATERWORKS WAY, 115
IRVINE, CA 92618

Orange County (949) 727-1772

DEAN F ARIAEE DDS

Dentist (General Practice)

113 WATERWORKS WAY, 310
IRVINE, CA 92618

Orange County (949) 558-7988

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 Reza Mahrou's NPI number?

The NPI number for Reza Mahrou is 1255376810. It was assigned to this individual provider in the NPPES registry on June 18, 2006. The provider is also known as Reza Mahrou M.D..

Where is Reza Mahrou located?

Reza Mahrou practices at 113 Waterworks Way Suite 345, Irvine, CA 92618. The listed phone number is (949) 872-2400.

What is Reza Mahrou's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Is Reza Mahrou enrolled in Medicare?

Yes. Reza Mahrou 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 Reza Mahrou's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Reza Mahrou reassigns Medicare benefits to Pain Care Providers A Professional Medical Corporation (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 Reza Mahrou'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 Reza Mahrou was last updated on February 29, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.