NPPES file of Aug 9, 2026

Lailey Naomi Oliva, MD

Internal Medicine Physician · Los Altos, CA

Lailey Naomi Oliva, MD is an internal medicine physician with a practice address in Los Altos, California, and NPI 1073768727, issued on Nov 21, 2008. Check the license (California A95289, 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
1073768727
Name
Lailey Naomi Oliva
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A95289 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
Nov 21, 2008
Record last updated
May 27, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090513000128); accepts Medicare assignment
Medical or professional school
University Of Florida College Of Medicine, 2004
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 Lailey Naomi Oliva in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A95289
    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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45% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,744 Medicare Part D claims for 225 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 21 claims were for opioids.

  1. Lailey Naomi Oliva1,744
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium178 claims
  2. Losartan Potassium123 claims
  3. Amlodipine Besylate86 claims
  4. Simvastatin81 claims
  5. Hydrochlorothiazide76 claims
  6. Levothyroxine Sodium74 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 FoundationSan Jose, CA

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

Lailey Naomi Oliva among 17,696 internal medicine physician records in California

Lailey Naomi Oliva, 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 2008, is newer than 56% of them.

  • NPI issued2008 · 56% of these records are older, 40% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2004 · 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 Lailey Naomi Oliva, MD's NPI number?

Lailey Naomi Oliva, MD's National Provider Identifier (NPI) is 1073768727, issued on Nov 21, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Lailey Naomi Oliva, 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 Lailey Naomi Oliva, MD's license?

NPPES lists California license number A95289, 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 Lailey Naomi Oliva, MD prescribe under Medicare Part D?

In 2024, Lailey Naomi Oliva, MD had 1,744 Medicare Part D claims for 225 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.