NPPES file of Aug 9, 2026

Fannie Wyndy Su, MD

Allergy & Immunology Physician · Walnut Creek, CA

Fannie Wyndy Su, MD is an allergy & immunology physician with a practice address in Walnut Creek, California, and NPI 1982738712, issued on Mar 15, 2007. Check the license (California A85919, 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
1982738712
Name
Fannie Wyndy Su
Credential
MD
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
A85919 CA
Self-reported in NPPES; status is on the state search
Practice location
130 LA Casa Via, Walnut Creek, CA 94598
Phone
(925) 935-6252
Enumerated
Mar 15, 2007
Record last updated
Mar 7, 2023
Medicare enrollment
Enrolled (PECOS I20110620000566); 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 130 LA Casa Via

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

  1. Shilpi Anand, M.D.Allergy Physician1871556605
  2. Michael Baker, M.D.Surgery Physician1043309008
  3. Emily Brama, RN, MSN, FNP, NP-CNurse Practitioner1952696684
  4. Angela Christian, N.P.Nurse Practitioner1023442167
  5. Michael Cohen, M.D.Critical Care Medicine (Internal Medicine) Physician1205885779
  6. David Cook, MDAllergy & Immunology Physician1740282425

Verify Fannie Wyndy Su in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A85919
    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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2.4 times the Medicare Part D claims of the average allergy & immunology physician in 2024

1,813 Medicare Part D claims for 251 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.

  1. Fannie Su1,813
  2. Specialty average741

Most prescribed

  1. Montelukast Sodium240 claims
  2. Azelastine Hcl169 claims
  3. Trelegy Ellipta156 claims
  4. Fluticasone Propionate148 claims
  5. Albuterol Sulfate Hfa100 claims
  6. Levocetirizine Dihydrochloride76 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): 69.9 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 score80.2
  2. Costout of 100 · 30%21.2
  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: $3,080.14

85 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Fannie Su$3,080.14
  2. Specialty average$8,321.81

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. Allergy And Asthma Medical Group OF The Bay Area IncWalnut Creek, CA

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

Fannie Wyndy Su among 444 allergy & immunology physician records in California

Fannie Wyndy Su, MD is one of 444 allergy & immunology 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 2007, is newer than 47% of them.

  • NPI issued2007 · 47% of these records are older, 38% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1998 · median 2004 among the 281 with a school on file
  • Record last updated2023 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in California

There are 444 allergy & immunology physician records in California.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Eric Chen, MDWalnut Creek, CA 945981558440222
  2. David Cook, MDWalnut Creek, CA 945981740282425
  3. David Fan, MDWalnut Creek, CA 945981619596152
  4. Karna Gendo, M.D.Walnut Creek, CA 945981720164536
  5. Ilisten Jones, M.D., M.P.H.Walnut Creek, CA 945981407148943
  6. Toral Kamdar, M.D.Walnut Creek, CA 945981073776555
  7. Barbara Karpel, MDWalnut Creek, CA 945981033111729
  8. Matthew Lodewick, MDWalnut Creek, CA 945981922091362

Common questions

What is Fannie Wyndy Su, MD's NPI number?

Fannie Wyndy Su, MD's National Provider Identifier (NPI) is 1982738712, issued on Mar 15, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Fannie Wyndy Su, MD located?

The NPPES record lists a practice address at 130 LA Casa Via, Walnut Creek, CA, 94598. Phone: (925) 935-6252. Providers update this record themselves, so call before visiting.

How can I verify Fannie Wyndy Su, MD's license?

NPPES lists California license number A85919, 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 Fannie Wyndy Su, MD prescribe under Medicare Part D?

In 2024, Fannie Wyndy Su, MD had 1,813 Medicare Part D claims for 251 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.

What is Fannie Wyndy Su, MD's MIPS final score?

The 2023 MIPS final score is 69.9 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.