NPPES file of Aug 9, 2026

Chien C. Oh, MD

Maternal & Fetal Medicine Physician · Phoenix, AZ

Chien C. Oh, MD is a maternal & fetal medicine physician with a practice address in Phoenix, Arizona, and NPI 1427134071, issued on Oct 27, 2006. Check the license (Arizona 36440, as entered in NPPES) on the Arizona Medical Board; 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
1427134071
Name
Chien C. Oh
Credential
MD
Primary taxonomy
Maternal & Fetal Medicine Physician 207VM0101X
License number
36440 AZ
Self-reported in NPPES; status is on the state search
Practice location
1441 N 12TH St FL 3, Phoenix, AZ 85006
Phone
(602) 521-5700
Enumerated
Oct 27, 2006
Record last updated
Mar 31, 2026
Fax
(602) 521-5701
Medicaid ID
174729 AZ
Medicare enrollment
Enrolled (PECOS I20070208000465); accepts Medicare assignment
Medical or professional school
Temple University School Of Medicine, 1997
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 1441 N 12TH St FL 3

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

  1. Mohammed Alabdoulsalam, DDSStudent in an Organized Health Care Education/Training Program1386486900
  2. Amaya Alarcon Torres, DOStudent in an Organized Health Care Education/Training Program1033048004
  3. Stephanie Amaya, MDObstetrics & Gynecology Physician1720570682
  4. Michael AngStudent in an Organized Health Care Education/Training Program1598217002
  5. Katrina BottoStudent in an Organized Health Care Education/Training Program1487532990
  6. Sarah Brady, MDStudent in an Organized Health Care Education/Training Program1700723210

Verify Chien C. Oh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 36440
    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 Arizona 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 88.4 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. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%59.4
  3. Promoting interoperabilityout of 100 · 25%98.0
  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: $27.95

1 payment: education; the largest payer was Fisher Scientific Company L.L.C. The 784 providers of this specialty with any payment received $1,252.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Chien Oh$27.95
  2. Specialty average$1,252.61

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. Banner - University Physician Specialists LLCPhoenix, AZ

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

Chien C. Oh among 66 maternal & fetal medicine physician records in Arizona

Chien C. Oh, MD is one of 66 maternal & fetal medicine physician records with a practice address in Arizona. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 36% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1997 · median 1999 among the 40 with a school on file
  • Record last updated2026 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Maternal & Fetal Medicine Physician providers in Arizona

There are 66 maternal & fetal medicine physician records in Arizona.

The 8 maternal & fetal medicine physician records with the nearest ZIP codes

  1. Steven Calvin, MDPhoenix, AZ 850061912976564
  2. Michael Foley, M.D.Phoenix, AZ 850061962471425
  3. Jordan Perlow, M.D.Phoenix, AZ 850061255390936
  4. Sarah Pachtman, M.D.Phoenix, AZ 850041104125806
  5. Kristin Williams, M.D.Phoenix, AZ 850041992847131
  6. Linda Chambliss, M.D.Phoenix, AZ 850131457370595
  7. Danielle Esters, MDPhoenix, AZ 850131780643346
  8. Kari Evans, MDPhoenix, AZ 850131831534007

Common questions

What is Chien C. Oh, MD's NPI number?

Chien C. Oh, MD's National Provider Identifier (NPI) is 1427134071, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chien C. Oh, MD located?

The NPPES record lists a practice address at 1441 N 12TH St FL 3, Phoenix, AZ, 85006. Phone: (602) 521-5700. Providers update this record themselves, so call before visiting.

How can I verify Chien C. Oh, MD's license?

NPPES lists Arizona license number 36440, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Chien C. Oh, MD's MIPS final score?

The 2023 MIPS final score is 88.4 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.