NPPES file of Aug 9, 2026

Dianne Storey, MD

Internal Medicine Physician · Los Altos, CA

Dianne Storey, MD is an internal medicine physician with a practice address in Los Altos, California, and NPI 1740372259, issued on Sep 29, 2006. Check the license (California G84044, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740372259
Name
Dianne Storey
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G84044 CA
Self-reported in NPPES; status is on the state search
Practice location
370 Distel Cir, Los Altos, CA 94022
Phone
(650) 254-5200
Enumerated
Sep 29, 2006
Record last updated
Mar 4, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080822000683); accepts Medicare assignment
Medical or professional school
University Of Kentucky College Of Medicine, 1991
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 370 Distel Cir

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

  1. Tinuola Ademola, MDInternal Medicine Physician1437472974
  2. Gunjan Agrawal, MBBS, DCH, MPHPediatrics Physician1588306922
  3. Kathleen Babington, MDPediatrics Physician1366474645
  4. Maria-Pilar Bernal, MDChild & Adolescent Psychiatry Physician1649356155
  5. Bhanu-Rekha Bhaskar, MDInternal Medicine Physician1932273539
  6. Aimee Blaustein, MDPediatrics Physician1184717233

Verify Dianne Storey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G84044
    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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30% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,218 Medicare Part D claims for 216 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Dianne Storey2,218
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium169 claims
  2. Atorvastatin Calcium155 claims
  3. Hydrochlorothiazide139 claims
  4. Simvastatin136 claims
  5. Amlodipine Besylate134 claims
  6. Losartan Potassium83 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.

Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationLos Altos, CA

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

Dianne Storey among 17,696 internal medicine physician records in California

Dianne Storey, MD is one of 17,696 internal medicine 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1991 · median 2004 among the 11,065 with a school on file
  • Record last updated2020 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

29 internal medicine physician records list a practice address in Los Altos

They are 29 of the 718 NPPES records with a practice address in Los Altos, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Bhanu-Rekha Bhaskar, MDLos Altos, CA 940221932273539
  2. Jacqueline Denkabe, MDLos Altos, CA 940221194883520
  3. Jessica Favreau, MDLos Altos, CA 940221841450731
  4. Julia Fong, MDLos Altos, CA 940221154409746
  5. Francis Lastufka, MDLos Altos, CA 940221144312141
  6. Janusz Madej, M.D.Los Altos, CA 940221376616706
  7. Carrie Mousseau, M.D.Los Altos, CA 940221447387451
  8. Amy Muzaffar, MDLos Altos, CA 940221124191481

Common questions

What is Dianne Storey, MD's NPI number?

Dianne Storey, MD's National Provider Identifier (NPI) is 1740372259, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dianne Storey, MD located?

The NPPES record lists a practice address at 370 Distel Cir, Los Altos, CA, 94022. Phone: (650) 254-5200. Providers update this record themselves, so call before visiting.

How can I verify Dianne Storey, MD's license?

NPPES lists California license number G84044, 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 Dianne Storey, MD prescribe under Medicare Part D?

In 2024, Dianne Storey, MD had 2,218 Medicare Part D claims for 216 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.