NPPES file of Aug 9, 2026

George Juan, M.D.

Pulmonary Disease Physician · Walnut Creek, CA

George Juan, M.D. is a pulmonary disease physician with a practice address in Walnut Creek, California, and NPI 1619273364, issued on Jan 28, 2011. Check the license (California A141456, 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
1619273364
Name
George Juan
Credential
M.D.
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License number
A141456 CA
Self-reported in NPPES; status is on the state search
Practice location
2700 Ygnacio Valley RD Ste 100, Walnut Creek, CA 94598
Phone
(925) 939-3050
Enumerated
Jan 28, 2011
Record last updated
Apr 17, 2024
Fax
(925) 939-3057
Medicare enrollment
Enrolled (PECOS I20160825001583); 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.
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Also registered at 2700 Ygnacio Valley RD Ste 100

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

  1. Maryam Amini, MDFamily Medicine Physician1245402072
  2. Elvio Ardilles, MDPulmonary Disease Physician1518905322
  3. Vala Berjis, M.D.Pulmonary Disease Physician1023135761
  4. Anne Grzegorczyk, M.D.Pulmonary Disease Physician1720434004
  5. Matthew LyonsPulmonary Disease Physician1457714933
  6. Ming-Tyh Maa, M.D.Pulmonary Disease Physician1073718722

Verify George Juan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A141456
    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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26% fewer Medicare Part D claims than the average pulmonary disease physician in 2024

1,052 Medicare Part D claims for 194 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.

  1. George Juan1,052
  2. Specialty average1,425

Most prescribed

  1. Breo Ellipta98 claims
  2. Trelegy Ellipta90 claims
  3. Breztri Aerosphere85 claims
  4. Prednisone82 claims
  5. Albuterol Sulfate Hfa63 claims
  6. Montelukast Sodium58 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): 80.4 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. Qualityout of 100 · 30% of the final score72.9
  2. Costout of 100 · 30%55.1
  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: $3,845.81

23 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. George Juan$3,845.81
  2. Specialty average$5,159.88

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. Muir Pulmonary Critical CareWalnut Creek, CA

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

George Juan among 1,443 pulmonary disease physician records in California

George Juan, M.D. is one of 1,443 pulmonary disease physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 70% of them.

  • NPI issued2011 · 70% of these records are older, 26% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2009 · median 2002 among the 1,061 with a school on file
  • Record last updated2024 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in California

There are 1,443 pulmonary disease physician records in California.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Elvio Ardilles, MDWalnut Creek, CA 945981518905322
  2. Vala Berjis, M.D.Walnut Creek, CA 945981023135761
  3. Ka Ling (karin) Cheung, M.D.Walnut Creek, CA 945981881643831
  4. Anne Grzegorczyk, M.D.Walnut Creek, CA 945981720434004
  5. Matthew LyonsWalnut Creek, CA 945981457714933
  6. Ming-Tyh Maa, M.D.Walnut Creek, CA 945981073718722
  7. Frederick Nachtwey, M.D.Walnut Creek, CA 945981710901822
  8. Manjari Nathan, M.D.Walnut Creek, CA 945981033386503

Common questions

What is George Juan, M.D.'s NPI number?

George Juan, M.D.'s National Provider Identifier (NPI) is 1619273364, issued on Jan 28, 2011. An NPI identifies a provider in billing; it is not a license.

Where is George Juan, M.D. located?

The NPPES record lists a practice address at 2700 Ygnacio Valley RD Ste 100, Walnut Creek, CA, 94598. Phone: (925) 939-3050. Providers update this record themselves, so call before visiting.

How can I verify George Juan, M.D.'s license?

NPPES lists California license number A141456, 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 George Juan, M.D. prescribe under Medicare Part D?

In 2024, George Juan, M.D. had 1,052 Medicare Part D claims for 194 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.

What is George Juan, M.D.'s MIPS final score?

The 2023 MIPS final score is 80.4 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.