NPPES file of Aug 9, 2026

Anna Juche Chen Arroyo, MD

Allergy & Immunology (Internal Medicine) Physician · Stanford, CA

Anna Juche Chen Arroyo, MD is an allergy & immunology (internal medicine) physician with a practice address in Stanford, California, and NPI 1205102472, issued on Mar 31, 2012. Check the license (California A126642, 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
1205102472
Name
Anna Juche Chen Arroyo
Credential
MD
Primary taxonomy
Allergy & Immunology (Internal Medicine) Physician 207RA0201X
License number
A126642 CA
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Dr, Stanford, CA 94305
Phone
(650) 723-4000
Enumerated
Mar 31, 2012
Record last updated
Apr 15, 2024
Medicare enrollment
Enrolled (PECOS I20190611000210); accepts Medicare assignment
Medical or professional school
Stanford University School Of Medicine, 2012
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 300 Pasteur Dr

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

  1. Cooper Aakhus, MDEmergency Medicine Physician1194351007
  2. Oliver Aalami, M.D.Vascular Surgery Physician1225229024
  3. Alistair Aaronson, MDInternal Medicine Physician1457628760
  4. Sumaira Aasi, MDMOHS-Micrographic Surgery Physician1780675181
  5. Fahim Abbasi, M.D.Internal Medicine Physician1841484037
  6. Mohamad Abbass, MDNeurological Surgery Physician1679492151

Verify Anna Juche Chen Arroyo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A126642
    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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86% fewer Medicare Part D claims than the average allergy & immunology (internal medicine) physician in 2024

108 Medicare Part D claims for 27 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.

  1. Anna Arroyo108
  2. Specialty average789

Most prescribed

  1. Azelastine Hcl18 claims
  2. Levocetirizine Dihydrochloride12 claims
  3. Trelegy Ellipta12 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): 76.5 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 score74.3
  2. Costout of 100 · 30%44.0
  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).

One hospital affiliation

  1. Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Allergy & Immunology (Internal Medicine) Physician providers in California

There are 81 allergy & immunology (internal medicine) physician records in California.

Other allergy & immunology (internal medicine) physician records in California

  1. Shields Abernathy, M.D.Templeton, CA1508886235
  2. Sam Ahn, M.D.Napa, CA1558423814
  3. Fatima Ali, MDSacramento, CA1093045023
  4. Sowmya Arja, M.D.San Francisco, CA1215390166
  5. Lawrence Awai, M.D.Clovis, CA1629510235
  6. Sally Bailey, MDSan Ramon, CA1700815677
  7. Tyler Basen, M.D.Mission Viejo, CA1184069692
  8. Sheila Bonilla-Tandoc, MD, MSLos Angeles, CA1457387805
  9. Geoffrey Carlson, MDTravis Afb, CA1174865588
  10. Suzanne Cassel, MDWest Hollywood, CA1316164015

Common questions

What is Anna Juche Chen Arroyo, MD's NPI number?

Anna Juche Chen Arroyo, MD's National Provider Identifier (NPI) is 1205102472, issued on Mar 31, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Anna Juche Chen Arroyo, MD located?

The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.

How can I verify Anna Juche Chen Arroyo, MD's license?

NPPES lists California license number A126642, 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 Anna Juche Chen Arroyo, MD prescribe under Medicare Part D?

In 2024, Anna Juche Chen Arroyo, MD had 108 Medicare Part D claims for 27 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. Part D covers Medicare prescriptions only.

What is Anna Juche Chen Arroyo, MD's MIPS final score?

The 2023 MIPS final score is 76.5 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.