NPPES file of Aug 9, 2026

Naomi Y. Porter, PA-C

Medical Physician Assistant · Newport Beach, CA

Naomi Y. Porter, PA-C is a medical physician assistant with a practice address in Newport Beach, California, and NPI 1740479302, issued on Oct 19, 2007. Check the license (California PA19331, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740479302
Name
Naomi Y. Porter
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA19331 CA
Self-reported in NPPES; status is on the state search
Practice location
22 Corporate Plaza Dr, Newport Beach, CA 92660
Phone
(949) 722-7038
Enumerated
Oct 19, 2007
Record last updated
Feb 17, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130715000651); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 22 Corporate Plaza Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Zachary Adler, MDOrthopaedic Surgery Physician1396884391
  2. Joyce Anderson, R.N.F.A.Registered Nurse First Assistant1952630006
  3. Justin Anderson, PA-CSurgical Physician Assistant1487924007
  4. Nicholas Bacher, MDPain Medicine (Anesthesiology) Physician1972130771
  5. Dennis Bansil, PA-CPhysician Assistant1740629047
  6. Lindsay Baumhefner, PA-CMedical Physician Assistant1043398977

Verify Naomi Y. Porter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PA19331
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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6% fewer Medicare Part D claims than the average medical physician assistant in 2024

1,081 Medicare Part D claims for 292 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 551 claims were for opioids.

  1. Naomi Porter1,081
  2. Specialty average1,148

Most prescribed

  1. Gabapentin248 claims
  2. Hydrocodone-Acetaminophen244 claims
  3. Oxycodone Hcl90 claims
  4. Oxycodone-Acetaminophen79 claims
  5. Tramadol Hcl63 claims
  6. Pregabalin50 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 83.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score95.0
  2. Costout of 100 · 30%54.7
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Hoag ClinicNewport Beach, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Naomi Y. Porter among 3,376 medical physician assistant records in California

Naomi Y. Porter, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 20% of them.

  • NPI issued2007 · 20% of these records are older, 68% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2007 · median 2012 among the 1,347 with a school on file
  • Record last updated2020 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in California

There are 3,376 medical physician assistant records in California.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Amy Anfuso, PA-CNewport Beach, CA 926601083024053
  2. Lindsay Baumhefner, PA-CNewport Beach, CA 926601043398977
  3. Wendy Delgado, PA-CNewport Beach, CA 926601063725059
  4. Elizabeth Donovan, PA-CNewport Beach, CA 926601295777068
  5. Renee Fabrizi, PA-CNewport Beach, CA 926601902879216
  6. Polly Loveton, PA-CNewport Beach, CA 926601912052499
  7. Emma MadorskyNewport Beach, CA 926601982562161
  8. Carolyn Perry, PA-CNewport Beach, CA 926601124276209

Common questions

What is Naomi Y. Porter, PA-C's NPI number?

Naomi Y. Porter, PA-C's National Provider Identifier (NPI) is 1740479302, issued on Oct 19, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Naomi Y. Porter, PA-C located?

The NPPES record lists a practice address at 22 Corporate Plaza Dr, Newport Beach, CA, 92660. Phone: (949) 722-7038. Providers update this record themselves, so call before visiting.

How can I verify Naomi Y. Porter, PA-C's license?

NPPES lists California license number PA19331, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Naomi Y. Porter, PA-C prescribe under Medicare Part D?

In 2024, Naomi Y. Porter, PA-C had 1,081 Medicare Part D claims for 292 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.

What is Naomi Y. Porter, PA-C's MIPS final score?

The 2023 MIPS final score is 83.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.