DR. DIANA MARIE MUNOZ DO, MA, MPH
NPI 1811158900
Physical Medicine & Rehabilitation in Santa Ana, CA

Active since June 20, 2008PECOS EnrolledAccepts Medicare Assignment
1805 E. DYER ROAD, #110, SANTA ANA, CA 92705(949) 955-0022(949) 743-0567 Get Directions Write a Review

NPPES record last updated: September 2, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Diana Marie Munoz Do, Ma, Mph NPPES

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

DR. DIANA MARIE MUNOZ DO, MA, MPH (NPI 1811158900) is an individual physical medicine & rehabilitation provider in Santa Ana, California, licensed in California (20A10370) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS and is a graduate of Other (2004).

NPPES Registry Identity

NPI1811158900
Entity TypeIndividualFemale
Primary Taxonomy208100000X
Provider Legal NameDR. DIANA MARIE MUNOZCredential: DO, MA, MPH
Location Address1805 E. DYER ROAD, #110Santa Ana, CA 92705-5742
Mailing Address1805 E. Dyer Road, #110Santa Ana, CA 92705-5742 · (949) 955-0022 · Fax (949) 743-0567
Fax(949) 743-0567
Sole ProprietorYes
Medical School CMSOtherGraduated 2004
Enumeration DateJune 20, 2008
Last NPPES UpdateSeptember 2, 2016
✔ NPI 1811158900 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysical Medicine & RehabilitationAllopathic & Osteopathic Physicians
Taxonomy Code208100000X
License✔ Licensed in CA · 20A10370
Definition
Physical medicine and rehabilitation, also referred to as rehabilitation medicine, is the medical specialty concerned with diagnosing, evaluating, and treating patients with physical disabilities. These disabilities may arise from conditions affecting the musculoskeletal system such as neck and back pain, sports injuries, or other painful conditions affecting the limbs, such as carpal tunnel syndrome. Alternatively, the disabilities may result from neurological trauma or disease such as spinal cord injury, head injury or stroke. A physician certified in physical medicine and rehabilitation is often called a physiatrist. The primary goal of the physiatrist is to achieve maximal restoration of physical, psychological, social and vocational function through comprehensive rehabilitation. Pain management is often an important part of the role of the physiatrist. For diagnosis and evaluation, a physiatrist may include the techniques of electromyography to supplement the standard history, physical, x-ray and laboratory examinations. The physiatrist has expertise in the appropriate use of therapeutic exercise, prosthetics (artificial limbs), orthotics and mechanical and electrical devices.
1805 E. DYER ROAD, Santa Ana, CA 92705

Other Names 1

Professional Name (2)Dr. Diana Marie Munoz Do, Ma, Mph

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. Diana Marie Munoz Do, Ma, Mph 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 ID6406910843
PECOS Enrollment IDI20090129000134
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

2

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

Electroneurodiagnostic
9191 WESTMINSTER AVE # 209
Garden Grove, CA 92844
  • Reassigned Medicare billing, California enrollment
  • 7 clinicians in this Medicare group
Physical Medicine & Rehabilitation
1321 NORTH GARVEY AVE. WEST
West Covina, CA 91790
  • Reassigned Medicare billing, California enrollment
  • 22 clinicians in this Medicare group

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 4

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.

Needle measurement of electrical activity in arm or leg muscles, complete study 95886
This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. This complete study helps diagnose issues with nerves or muscles, providing valuable data for your treatment plan.
83 services45 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
33 services33 patients
Nerve conduction, 11-12 studies 95912
Nerve conduction studies are tests that measure how well your nerves are working. In 11-12 studies, small electrodes are placed on your skin to send and receive electrical signals. These signals show how quickly and effectively your nerves are transmitting signals, helping to identify any nerve damage or dysfunction.
21 services21 patients
Nerve conduction, 13 or more studies 95913
Nerve conduction studies involve 13 or more tests to check the speed and strength of signals traveling between your nerves and muscles. It helps diagnose conditions affecting nerves and muscles. The test involves small shocks and may cause minor discomfort.
15 services15 patients

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 Diana Munoz's NPI number?

The NPI number for Diana Munoz is 1811158900. It was assigned to this individual provider in the NPPES registry on June 20, 2008. The provider is also known as Dr. Diana Marie Munoz Do, Ma, Mph.

Where is Diana Munoz located?

Diana Munoz practices at 1805 E. Dyer Road #110, Santa Ana, CA 92705. The listed phone number is (949) 955-0022.

What is Diana Munoz's specialty?

The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.

Is Diana Munoz enrolled in Medicare?

Yes. Diana Munoz 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 Diana Munoz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diana Munoz reassigns Medicare benefits to 2 organizations: California Diagnostic Specialists, Inc. (Garden Grove, CA) and Precision Occupational Medical Group, Inc. (West Covina, 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 Diana Munoz'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 Diana Munoz was last updated on September 2, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.