NPPES file of Aug 9, 2026

Ariel Murtagh

Family Medicine Physician · Fountain Valley, CA

Ariel Murtagh is a family medicine physician with a practice address in Fountain Valley, California, and NPI 1770042541, issued on Mar 19, 2019. Check the license (California A177962, as entered in NPPES) on the Medical Board of California; 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
1770042541
Name
Ariel Murtagh
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A177962 CA
Self-reported in NPPES; status is on the state search
Practice location
11420 Warner Avenue, Fountain Valley, CA 92708
Phone
(714) 549-1300
Enumerated
Mar 19, 2019
Record last updated
Jul 29, 2022
Fax
(714) 433-3100
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 11420 Warner Avenue

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

  1. Tiffany HoangPhysician Assistant1336729623
  2. Jay PatelFamily Medicine Physician1538626999
  3. Tammy Trang, PAPhysician Assistant1225738826

Verify Ariel Murtagh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A177962
    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
Open the California license search

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83% fewer Medicare Part D claims than the average family medicine physician in 2024

592 Medicare Part D claims for 63 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Ariel Murtagh592
  2. Specialty average3,544

Most prescribed

  1. Levothyroxine Sodium37 claims
  2. Rosuvastatin Calcium35 claims
  3. Atorvastatin Calcium32 claims
  4. Hydroxyzine Hcl19 claims
  5. Fluticasone Propionate18 claims
  6. Losartan Potassium18 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): 76.7 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 score80.9
  2. Costout of 100 · 30%55.1
  3. Promoting interoperabilityout of 100 · 25%78.0
  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).

Industry payments in 2024: $249.08

10 payments; by number, the most common kind was food and beverage; the largest payer was Exeltis, USA Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ariel Murtagh$249.08
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Ariel Murtagh among 17,133 family medicine physician records in California

Ariel Murtagh is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.

  • NPI issued2019 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2022 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

51 family medicine physician records list a practice address in Fountain Valley

They are 51 of the 2,190 NPPES records with a practice address in Fountain Valley, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Arfa Babaknia, M.D.Fountain Valley, CA 927081205826849
  2. Hung-Chuan Cheng, M.D.Fountain Valley, CA 927081053389023
  3. Brian Coyne, M.D.Fountain Valley, CA 927081457306334
  4. Nasrin Damoui, MDFountain Valley, CA 927081841295326
  5. Robert Devereaux, MDFountain Valley, CA 927081043264781
  6. David Dunckel, MDFountain Valley, CA 927081518957794
  7. Edgar Fernandez, DOFountain Valley, CA 927081033157235
  8. Jo Lieberman Pan, MDFountain Valley, CA 927081598756090

Common questions

What is Ariel Murtagh's NPI number?

Ariel Murtagh's National Provider Identifier (NPI) is 1770042541, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Ariel Murtagh located?

The NPPES record lists a practice address at 11420 Warner Avenue, Fountain Valley, CA, 92708. Phone: (714) 549-1300. Providers update this record themselves, so call before visiting.

How can I verify Ariel Murtagh's license?

NPPES lists California license number A177962, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ariel Murtagh prescribe under Medicare Part D?

In 2024, Ariel Murtagh had 592 Medicare Part D claims for 63 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Ariel Murtagh's MIPS final score?

The 2023 MIPS final score is 76.7 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.