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MARI PEREZ-ROSENDAHL M.D.
NPI 1548620404
Pathology - Neuropathology in Orange, CA

Active since March 03, 2016PECOS EnrolledAccepts Medicare Assignment
101 THE CITY DR S, BUILDING 1, 3RD FLOOR, ORANGE, CA 92868(714) 456-6141 Get Directions Write a Review

NPPES record last updated: July 3, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 3, 2018, Mar 3, 2016 (2 updates tracked since 2016).

About Mari Perez-rosendahl M.d. NPPES

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

MARI PEREZ-ROSENDAHL M.D. (NPI 1548620404) is an individual neuropathology provider in Orange, California, licensed in California (A141371) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (2014).

NPPES Registry Identity

NPI1548620404
Entity TypeIndividualFemale
Primary Taxonomy207ZN0500X
Provider Legal NameMARI PEREZ-ROSENDAHLCredential: M.D.
Location Address101 THE CITY DR S, BUILDING 1, 3RD FLOOROrange, CA 92868
Mailing Address101 The City Dr S, Building 1, 3rd FloorOrange, CA 92868-3201 · (714) 456-6141
Phone(714) 456-6141
Sole ProprietorNo
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 2014
Enumeration DateMarch 3, 2016
Last NPPES UpdateJuly 3, 20182 updates tracked since enumeration
✔ NPI 1548620404 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · NeuropathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZN0500X
License✔ Licensed in CA · A141371
Definition
A neuropathologist is expert in the diagnosis of diseases of the nervous system and skeletal muscles and functions as a consultant primarily to neurologists and neurosurgeons. The neuropathologist is knowledgeable in the infirmities of humans as they affect the nervous and neuromuscular systems, be they degenerative, infectious, metabolic, immunologic, neoplastic, vascular or physical in nature.
101 THE CITY DR S, Orange, CA 92868
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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

Mari Perez-rosendahl 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 ID143575266
PECOS Enrollment IDI20180613002730
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 Mari Perez-rosendahl reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of California
0.3 mi
Anatomic Pathology & Clinical Pathology
101 THE CITY DR S
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 84 clinicians in this Medicare group
NPI 1174662555 (714) 456-6411
Regents Of The University Of California
0.3 mi
Anatomic Pathology & Clinical Pathology
101 THE CITY DR S
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 79 clinicians in this Medicare group
NPI 1558311811 (714) 456-6411

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.

Special stained specimen slides to examine tissue, each additional procedure 88341
Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.
60 services17 patients
Pathology examination of tissue using a microscope, moderately high complexity 88307
A pathology examination of tissue with moderate complexity involves a detailed study of a small tissue sample from your body. Using a microscope, experts analyze the tissue's structure and cells to identify any abnormalities. This helps in diagnosing various health conditions accurately.
36 services17 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
25 services22 patients
Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
24 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92868 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.

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.

DR. ANKIT BHUPENDRA PATEL D.O.
Radiology (Diagnostic Radiology)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-5113
DR. LAURA CATHERINE SKOCZYLAS MD
Obstetrics & Gynecology
101 THE CITY DR S, BUILDING 56, DEPARTMENT OF OB/GYN
ORANGE, CA 92868
Orange County (714) 456-8224
MICHAEL CHENG DO
Internal Medicine (Rheumatology)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-7110
AESTHETIC AND PLASTIC SURGERY INSTITUTE
Plastic Surgery
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-2986
JOSEPH VILLARREAL M.D.
Emergency Medicine
101 THE CITY DR S, BUILDING 1A, ROOM 1009
ORANGE, CA 92868
Orange County (714) 456-5239
DEMI TRAN
Psychiatry & Neurology (Neurology)
101 THE CITY DR S, CITY TOWER, SUITE 400
ORANGE, CA 92868
Orange County (171) 456-6693
DR. ISABEL CARLTON CLARK M.D.
Surgery (Trauma Surgery)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-7890
DYLAN LUKATO
Emergency Medicine
101 THE CITY DR S
ORANGE, CA 92868
Orange County (415) 218-8041

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 Mari Perez-rosendahl's NPI number?

The NPI number for Mari Perez-rosendahl is 1548620404. It was assigned to this individual provider in the NPPES registry on March 3, 2016.

Where is Mari Perez-rosendahl located?

Mari Perez-rosendahl practices at 101 The City Dr S Building 1, 3rd Floor, Orange, CA 92868. The listed phone number is (714) 456-6141.

What is Mari Perez-rosendahl's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Neuropathology, with taxonomy code 207ZN0500X.

Is Mari Perez-rosendahl enrolled in Medicare?

Yes. Mari Perez-rosendahl 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 Mari Perez-rosendahl's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mari Perez-rosendahl reassigns Medicare benefits to 2 organizations: Regents Of The University Of California (Orange, CA) and Regents Of The University Of California (Orange, 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 Mari Perez-rosendahl'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 Mari Perez-rosendahl was last updated on July 3, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.