NPPES file of Aug 9, 2026

Ignacio Ognian, MD

Student in an Organized Health Care Education/Training Program · Palo Alto, CA

Ignacio Ognian, MD is a student in an organized health care education/training program with a practice address in Palo Alto, California, and NPI 1871288449, issued on Apr 10, 2023. Check the license with the California board that licenses this profession; 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
1871288449
Name
Ignacio Ognian
Credential
MD
Primary taxonomy
Student in an Organized Health Care Education/Training Program 390200000X
Practice location
500 Pasteur Dr, Palo Alto, CA 94304
Phone
(650) 724-4750
Enumerated
Apr 10, 2023
Record last updated
May 6, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 500 Pasteur Dr

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

  1. Layla AboukhaterStudent in an Organized Health Care Education/Training Program1629867858
  2. Cresencio AdameCritical Care Medicine (Internal Medicine) Physician1750021564
  3. Aiman Alassar, MD, PHDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1316553878
  4. Prasannaraddi Alavandi, PHARMDOncology Pharmacist1932035482
  5. Abdurrasheed AlhadiEmergency Medicine Physician1174151617
  6. Zainab AlzawadRegistered Nurse1154298735

Verify Ignacio Ognian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
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88% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024

23 Medicare Part D claims for 19 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Ignacio Ognian23
  2. Specialty average185

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.

Ignacio Ognian among 40,652 student in an organized health care education/training program records in California

Ignacio Ognian, MD is one of 40,652 student in an organized health care education/training program records with a practice address in California. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 42% of them.

  • NPI issued2023 · 42% of these records are older, 47% newer
  • In a Medicare fileYes · 16% of these records are
  • In the CMS Doctors and Clinicians fileNo · 6% of these records are
  • Record last updated2023 · 26% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

655 student in an organized health care education/training program records list a practice address in Palo Alto

They are 655 of the 7,617 NPPES records with a practice address in Palo Alto, and 40,652 student in an organized health care education/training program records in California.

The 8 student in an organized health care education/training program records with the nearest ZIP codes

  1. Jerry Chen, M.D.Palo Alto, CA 943041760643837
  2. Ian Chen, M.D.Palo Alto, CA 943041477855294
  3. Allison Collins, M.D.Palo Alto, CA 943041215124268
  4. Susan FlatmoPalo Alto, CA 943041871613307
  5. Michael Friedberg, MAPalo Alto, CA 943041679898852
  6. Roni GavishPalo Alto, CA 943041811152770
  7. Emily JohnstonPalo Alto, CA 943041992020085
  8. Stephanie Knueppel, DDSPalo Alto, CA 943041942588116

Common questions

What is Ignacio Ognian, MD's NPI number?

Ignacio Ognian, MD's National Provider Identifier (NPI) is 1871288449, issued on Apr 10, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Ignacio Ognian, MD located?

The NPPES record lists a practice address at 500 Pasteur Dr, Palo Alto, CA, 94304. Phone: (650) 724-4750. Providers update this record themselves, so call before visiting.

How can I verify Ignacio Ognian, MD's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Ignacio Ognian, MD prescribe under Medicare Part D?

In 2024, Ignacio Ognian, MD had 23 Medicare Part D claims for 19 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.