NPPES file of Aug 9, 2026

Adena Shahinian, DO

Neurology Physician · Pasadena, CA

Adena Shahinian, DO is a neurology physician with a practice address in Pasadena, California, and NPI 1457708182, issued on May 23, 2016. Check the license (California 20A18809, 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
1457708182
Name
Adena Shahinian
Credential
DO
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
20A18809 CA
SL1196 NV
Self-reported in NPPES; status is on the state search
Practice location
625 S Fair Oaks Ave Ste 325, Pasadena, CA 91105
Phone
(626) 535-9344
Enumerated
May 23, 2016
Record last updated
Jul 21, 2022
Fax
(626) 535-9687
Medicare enrollment
Enrolled (PECOS I20220715001526); accepts Medicare assignment
Medical or professional school
Alabama College Of Osteopathic Medicine, 2017
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 625 S Fair Oaks Ave Ste 325

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

  1. Juan GonzalezStudent in an Organized Health Care Education/Training Program1659200178
  2. Alice Mailyan, FNPFamily Nurse Practitioner1255149274
  3. Naveetha Nandakumar, DONeurology Physician1265992630

Verify Adena Shahinian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A18809
    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

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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41% fewer Medicare Part D claims than the average neurology physician in 2024

813 Medicare Part D claims for 145 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Adena Shahinian813
  2. Specialty average1,370

Most prescribed

  1. Donepezil Hcl136 claims
  2. Gabapentin99 claims
  3. Levetiracetam65 claims
  4. Memantine Hcl51 claims
  5. Lacosamide35 claims
  6. Oxcarbazepine32 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): 94.6 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 score78.8
  2. Costout of 100 · 30%86.7
  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).

Industry payments in 2024: $1,366.01

52 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Adena Shahinian$1,366.01
  2. Specialty average$8,318.07

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

Bills Medicare through one group practice

  1. Southern California Neurology Medical Group, Inc.Pasadena, CA

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

Adena Shahinian among 2,339 neurology physician records in California

Adena Shahinian, DO is one of 2,339 neurology 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 2016, is newer than 78% of them.

  • NPI issued2016 · 78% of these records are older, 19% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2017 · median 2006 among the 1,628 with a school on file
  • Record last updated2022 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in California

There are 2,339 neurology physician records in California.

The 8 neurology physician records with the nearest ZIP codes

  1. Elie DancourPasadena, CA 911051275824252
  2. Philip Girard, M.D.Pasadena, CA 911051215078381
  3. David GirardPasadena, CA 911051659777944
  4. Ramin KarimiPasadena, CA 911051891255048
  5. Avriel Linane, DOPasadena, CA 911051912135104
  6. Nikita Maniar, MDPasadena, CA 911051225547722
  7. Yafa Minazad, D.O.Pasadena, CA 911051982636122
  8. Naveetha Nandakumar, DOPasadena, CA 911051265992630

Common questions

What is Adena Shahinian, DO's NPI number?

Adena Shahinian, DO's National Provider Identifier (NPI) is 1457708182, issued on May 23, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Adena Shahinian, DO located?

The NPPES record lists a practice address at 625 S Fair Oaks Ave Ste 325, Pasadena, CA, 91105. Phone: (626) 535-9344. Providers update this record themselves, so call before visiting.

How can I verify Adena Shahinian, DO's license?

NPPES lists California license number 20A18809, 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 Adena Shahinian, DO prescribe under Medicare Part D?

In 2024, Adena Shahinian, DO had 813 Medicare Part D claims for 145 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Adena Shahinian, DO's MIPS final score?

The 2023 MIPS final score is 94.6 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.