DR. AYONIJA MAHESHWARI M.D.
NPI 1255584504
Anesthesiology in Portland, OR

Q: What is Ayonija Maheshwari's NPI number?

The NPI number for Ayonija Maheshwari is 1255584504. It was assigned to this individual provider in the NPPES registry on October 30, 2008.

Q: What is Ayonija Maheshwari's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Active since October 30, 2008PECOS EnrolledAccepts Medicare Assignment

84.46/100

CMS Quality Rating

3181 SW SAM JACKSON PARK RD, PORTLAND, OR 97239(503) 494-7641(503) 494-8368 Get Directions Write a Review

NPPES record last updated: February 28, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Ayonija Maheshwari M.d. NPPES

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

DR. AYONIJA MAHESHWARI M.D. (NPI 1255584504) is an individual anesthesiology provider in Portland, Oregon, licensed in Oregon (MD195961) and active in the NPI registry since October 2008. She is enrolled in Medicare PECOS and is a graduate of Yale University School Of Medicine (2006).

NPPES Registry Identity

NPI1255584504

Entity TypeIndividualFemale

Primary Taxonomy207L00000X

Provider Legal NameDR. AYONIJA MAHESHWARICredential: M.D.

Location Address3181 SW SAM JACKSON PARK RDPortland, OR 97239-3011

Mailing Address3181 Sw Sam Jackson Park RdPortland, OR 97239-3011 · (503) 494-7641 · Fax (503) 494-8368

Phone(503) 494-7641

Fax(503) 494-8368

Sole ProprietorNo

Medical School CMSYale University School Of MedicineGraduated 2006

Enumeration DateOctober 30, 2008

Last NPPES UpdateFebruary 28, 2020

✔ NPI 1255584504 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in OR · MD195961

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Also ListedInternal MedicineTaxonomy 207R00000X · License MD195961 (OR)

3181 SW SAM JACKSON PARK RD, Portland, OR 97239

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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

Dr. Ayonija Maheshwari 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 ID1557526092

PECOS Enrollment IDI20120706000327

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

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

El Camino Anesthesia

570 mi

Anesthesiology

815 POLLARD RD
Los Gatos, CA 95032

Reassigned Medicare billing, California enrollment
84 clinicians in this Medicare group

NPI 1356910053 (408) 378-6131

University Anesthesiology Associates, LLC

Anesthesiology

3181 SW SAM JACKSON PARK RD, MAILCODE: SJH-2
Portland, OR 97239

Reassigned Medicare billing, Oregon enrollment
279 clinicians in this Medicare group

NPI 1841217817 (503) 494-4910

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

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.

84.46/100

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

Scored as part of a group practice

Quality

94.32

Improvement Activities

Cost

46.21

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.

DONALD RICHARD SULLIVAN MD

Internal Medicine (Pulmonary Disease)

3181 SW SAM JACKSON PARK RD, UHN67
PORTLAND, OR 97239

Multnomah County (503) 494-6949

MRS. ANJALEE NIX ROWE NP

Nurse Practitioner (Acute Care)

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 494-3988

REEM HASAN MD

Internal Medicine

3181 SW SAM JACKSON PARK RD, PPV 350
PORTLAND, OR 97239

Multnomah County (503) 494-8562

DR. AMANDA D BALL PSY.D

Psychologist (Clinical)

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 494-6176

SUNSHINE WELSCH LMT

Massage Therapist

3181 SW SAM JACKSON PARK RD, 7D19
PORTLAND, OR 97239

Multnomah County (503) 494-8349

DR. ROBERT GENE MEALER M.D., PH.D.

Psychiatry & Neurology (Psychiatry)

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 494-6176

GREGORY HALL MD

Radiology (Diagnostic Radiology)

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 418-0990

DR. BURHAN AHMED MIAN MD

Student in an Organized Health Care Education/Training Program

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 494-8311

KARINA RAE ESPANA MD

Psychiatry & Neurology (Psychiatry)

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 494-8311

CLAIRE SAHLBERG RUGGERI MD

Pediatrics

3181 SW SAM JACKSON PARK RD, OHSU
PORTLAND, OR 97239

Multnomah County (503) 494-8220

KIMBERLY LAUREN IMBESI MD

Emergency Medicine

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 494-8211

ANN PERRIN

Student in an Organized Health Care Education/Training Program

3181 SW SAM JACKSON PARK RD, OHSU
PORTLAND, OR 97239

Multnomah County (503) 494-8211

KRIS KUMAR

Internal Medicine (Interventional Cardiology)

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 494-8311

SARAH POWER LCSW

Social Worker (Clinical)

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 494-0849

SHAHRZAD SHARAFI MD

Radiology (Diagnostic Radiology)

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 418-0990

JULIE MARIE MARTIN

Dietitian, Registered

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 494-5466

DR. SONYA FABRICANT MD

Obstetrics & Gynecology

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 418-4500

BRENDA BONILLA

Social Worker (Clinical)

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 494-2273

KAYLEE PURPURA

Otolaryngology (Plastic Surgery within the Head & Neck)

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 494-8510

MOLLY ANDERSON PA-C

Physician Assistant (Medical)

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Multnomah County (503) 494-4910

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 Ayonija Maheshwari's NPI number?

The NPI number for Ayonija Maheshwari is 1255584504. It was assigned to this individual provider in the NPPES registry on October 30, 2008.

Where is Ayonija Maheshwari located?

Ayonija Maheshwari practices at 3181 SW Sam Jackson Park Rd, Portland, OR 97239. The listed phone number is (503) 494-7641.

What is Ayonija Maheshwari's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Ayonija Maheshwari enrolled in Medicare?

Yes. Ayonija Maheshwari 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 Ayonija Maheshwari's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ayonija Maheshwari reassigns Medicare benefits to 2 organizations: El Camino Anesthesia (Los Gatos, CA) and University Anesthesiology Associates, LLC (Portland, OR). 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 Ayonija Maheshwari'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 Ayonija Maheshwari was last updated on February 28, 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.