NPPES file of Aug 9, 2026

Norman T. Chien, MD

Geriatric Medicine (Internal Medicine) Physician · Pasadena, CA

Norman T. Chien, MD is a geriatric medicine (internal medicine) physician with a practice address in Pasadena, California, and NPI 1184696999, issued on Feb 6, 2006. Check the license (California A62136, 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
1184696999
Name
Norman T. Chien
Credential
MD
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
A62136 CA
Self-reported in NPPES; status is on the state search
Practice location
625 S Fair Oaks Ave, Pasadena, CA 91105
Phone
(626) 229-9865
Enumerated
Feb 6, 2006
Record last updated
Aug 21, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(626) 229-9867
Medicare enrollment
Enrolled (PECOS I20080214000284); 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.
Download card Updates feed

Also registered at 625 S Fair Oaks Ave

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

  1. Candida BahnmaierTechnician/Technologist1841080132
  2. Kim Bui, M.D.Obstetrics & Gynecology Physician1164871133
  3. Heather Butler, MDDermatology Physician1417927419
  4. Jennie Chang, M.D.Obstetrics & Gynecology Physician1982668422
  5. Jennifer Chronis, M.D.Family Medicine Physician1598297954
  6. Gary Conrad, M.D.Cardiovascular Disease Physician1669424271

Verify Norman T. Chien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A62136
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

27% more Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

5,404 Medicare Part D claims for 259 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 29 claims were for opioids.

  1. Norman Chien5,404
  2. Specialty average4,246

Most prescribed

  1. Levothyroxine Sodium246 claims
  2. Atorvastatin Calcium188 claims
  3. Metformin Hcl150 claims
  4. Amlodipine Besylate136 claims
  5. Mirtazapine136 claims
  6. Tamsulosin Hcl135 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): 71.8 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 score64.7
  2. Costout of 100 · 30%19.6
  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: $857.58

33 payments; by number, the most common kind was food and beverage; the largest payer was Vanda Pharmaceuticals Inc. The 1,004 providers of this specialty with any payment received $1,720.82 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Norman Chien$857.58
  2. Specialty average$1,720.82

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. Huntington Geriatric Medical GroupPasadena, CA

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

Geriatric Medicine (Internal Medicine) Physician providers in California

There are 532 geriatric medicine (internal medicine) physician records in California.

Other geriatric medicine (internal medicine) physician records in California

  1. Adil Abbasi, M.D.La Jolla, CA1548261316
  2. Shashidar Acharya, M.D.Orange, CA1770685521
  3. Marie AdachiLos Angeles, CA1629496740
  4. Pouya Afshar, M.D.San Diego, CA1184958977
  5. Parag Agnihotri, M.D.San Diego, CA1447351085
  6. Andreas Ahlas, M.D.Bakersfield, CA1326200833
  7. Waseem Ahmed, MDSanta Rosa, CA1386803559
  8. Paul AisenSan Diego, CA1669470753
  9. Mahmuda Alam, M.D.Glendale, CA1568659985
  10. Cathy Alessi, M.D.North Hills, CA1134224983

Common questions

What is Norman T. Chien, MD's NPI number?

Norman T. Chien, MD's National Provider Identifier (NPI) is 1184696999, issued on Feb 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Norman T. Chien, MD located?

The NPPES record lists a practice address at 625 S Fair Oaks Ave, Pasadena, CA, 91105. Phone: (626) 229-9865. Providers update this record themselves, so call before visiting.

How can I verify Norman T. Chien, MD's license?

NPPES lists California license number A62136, 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 Norman T. Chien, MD prescribe under Medicare Part D?

In 2024, Norman T. Chien, MD had 5,404 Medicare Part D claims for 259 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.

What is Norman T. Chien, MD's MIPS final score?

The 2023 MIPS final score is 71.8 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.