NPPES file of Aug 9, 2026

Nalini Devi Mattai, MD

General Practice Physician · Pasadena, CA

Nalini Devi Mattai, MD is a general practice physician with a practice address in Pasadena, California, and NPI 1982803052, issued on Jul 17, 2007. Check the license (California G83956, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1982803052
Name
Nalini Devi Mattai
Credential
MD
Primary taxonomy
General Practice Physician 208D00000X
License number
G83956 CA
Self-reported in NPPES; status is on the state search
Practice location
301 S Fair Oaks Ave Ste 405, Pasadena, CA 91105
Phone
(626) 792-1912
Enumerated
Jul 17, 2007
Record last updated
May 3, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(626) 792-1960
Medicare enrollment
Enrolled (PECOS I20050324000256); may accept Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1993
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 301 S Fair Oaks Ave Ste 405

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

  1. Justin Chen, MDNephrology Physician1447526066
  2. Dolores Figueroa, M.D.Internal Medicine Physician1033287701
  3. Jennifer Kahau-Segovia, FNPNurse Practitioner1629608906
  4. Ilian Marquez, M.D.Nephrology Physician1710019906
  5. Elana Sheldon, MDInternal Medicine Physician1790708915
  6. Ashok Sunder Raj, M.D.Nephrology Physician1093744070

Verify Nalini Devi Mattai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G83956
    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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43% more Medicare Part D claims than the average general practice physician in 2024

4,326 Medicare Part D claims for 347 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. 53 claims were for opioids.

  1. Nalini Mattai4,326
  2. Specialty average3,030

Most prescribed

  1. Amlodipine Besylate253 claims
  2. Atorvastatin Calcium238 claims
  3. Rosuvastatin Calcium225 claims
  4. Levothyroxine Sodium190 claims
  5. Irbesartan136 claims
  6. Metformin Hcl129 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.

Industry payments in 2024: $1,092.95

50 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 4,259 providers of this specialty with any payment received $1,273.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nalini Mattai$1,092.95
  2. Specialty average$1,273.40

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. Pasadena Family Medicine IncPasadena, CA

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

General Practice Physician providers in California

There are 1,956 general practice physician records in California.

Other general practice physician records in California

  1. Hessam Aazami, M.D.Canoga Park, CA1144299173
  2. Ali Abaian, M.D.Los Angeles, CA1316061674
  3. Tahira Abbasi, MDLa Jolla, CA1619062346
  4. Ryan Abbott, M.D.Los Angeles, CA1194016030
  5. Adel Abdelsayed, M.D.Huntington Park, CA1922164961
  6. Kashif Abdullah, M.D. , M.P.HSan Jose, CA1164651212
  7. Ilona Abraham, MDEncino, CA1700939576
  8. Jerry Abraham, MD, MPH, CMQLos Angeles, CA1932514874
  9. Azniv Abrahamian, M.D.North Hollywood, CA1033270293
  10. Elliot Abravanel, MDSan Marino, CA1821610114

Common questions

What is Nalini Devi Mattai, MD's NPI number?

Nalini Devi Mattai, MD's National Provider Identifier (NPI) is 1982803052, issued on Jul 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Nalini Devi Mattai, MD located?

The NPPES record lists a practice address at 301 S Fair Oaks Ave Ste 405, Pasadena, CA, 91105. Phone: (626) 792-1912. Providers update this record themselves, so call before visiting.

How can I verify Nalini Devi Mattai, MD's license?

NPPES lists California license number G83956, 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 Nalini Devi Mattai, MD prescribe under Medicare Part D?

In 2024, Nalini Devi Mattai, MD had 4,326 Medicare Part D claims for 347 beneficiaries; the average among general practice physician prescribers was 3,030. Part D covers Medicare prescriptions only.

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.