NPPES file of Aug 9, 2026

Otto Orlean Yang, MD

Infectious Disease Physician · Los Angeles, CA

Otto Orlean Yang, MD is an infectious disease physician with a practice address in Los Angeles, California, and NPI 1780604298, issued on Jul 20, 2006. Check the license (California G85572, 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
1780604298
Name
Otto Orlean Yang
Credential
MD
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
G85572 CA
Self-reported in NPPES; status is on the state search
Practice location
200 Medical Plaza, Los Angeles, CA 90095
Phone
(310) 794-9491
Enumerated
Jul 20, 2006
Record last updated
Dec 5, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(310) 825-3632
Medicaid ID
00G855720 CA
Medicare enrollment
Enrolled (PECOS I20060403000277); accepts Medicare assignment
Medical or professional school
Warren Alpert Medical School Of Brown University, 1990
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 200 Medical Plaza

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

  1. Anita Agzarian, MDInternal Medicine Physician1144254590
  2. Sheila Ahmadi, MDEndocrinology, Diabetes & Metabolism Physician1194800094
  3. Marine Altunyan, PHARMDAmbulatory Care Pharmacist1578300083
  4. Gayane Ambartsumyan, MDObstetrics & Gynecology Physician1174556849
  5. Parviz Amid, M.D.Surgery Physician1073633459
  6. Adrienne Bawa, REGISTERED NURSECase Management Registered Nurse1497355366

Verify Otto Orlean Yang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G85572
    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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88% fewer Medicare Part D claims than the average infectious disease physician in 2024

82 Medicare Part D claims for 27 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.

  1. Otto Yang82
  2. Specialty average689

Most prescribed

  1. Vancomycin Hcl27 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): 86.1 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 score82.9
  2. Costout of 100 · 30%66.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  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: $80,505.25

9 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Applied Medical Corporation. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Otto Yang$80,505
  2. Specialty average$4,362

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. The Regents OF The University OF CaliforniaLos Angeles, CA

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

Otto Orlean Yang among 1,119 infectious disease physician records in California

Otto Orlean Yang, MD is one of 1,119 infectious disease physician records with a practice address in California. 79% 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 54% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1990 · median 2003 among the 735 with a school on file
  • Record last updated2012 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in California

There are 1,119 infectious disease physician records in California.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Oladunni Adeyiga, MDLos Angeles, CA 900951801809751
  2. Timothy Brewer, MDLos Angeles, CA 900951174523245
  3. Judith Currier, MDLos Angeles, CA 900951508882614
  4. Milan Fiala, MDLos Angeles, CA 900951730270737
  5. Aric Gregson, MDLos Angeles, CA 900951588683007
  6. Bernard Kubak, MDLos Angeles, CA 900951831118876
  7. Michael Lovett, MDLos Angeles, CA 900951053330902
  8. Glenn Mathisen, MDLos Angeles, CA 900951376564948

Common questions

What is Otto Orlean Yang, MD's NPI number?

Otto Orlean Yang, MD's National Provider Identifier (NPI) is 1780604298, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Otto Orlean Yang, MD located?

The NPPES record lists a practice address at 200 Medical Plaza, Los Angeles, CA, 90095. Phone: (310) 794-9491. Providers update this record themselves, so call before visiting.

How can I verify Otto Orlean Yang, MD's license?

NPPES lists California license number G85572, 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 Otto Orlean Yang, MD prescribe under Medicare Part D?

In 2024, Otto Orlean Yang, MD had 82 Medicare Part D claims for 27 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

What is Otto Orlean Yang, MD's MIPS final score?

The 2023 MIPS final score is 86.1 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.