Shawna Greenleaf, MD
Student in an Organized Health Care Education/Training Program · Palo Alto, CA
Shawna Greenleaf, MD is a student in an organized health care education/training program with a practice address in Palo Alto, California, and NPI 1881275675, issued on Apr 14, 2021. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Shawna Greenleaf
- Credential
- MD
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 900 Welch RD Ste 350, Palo Alto, CA 94304
- Phone
- (650) 736-9100
- Enumerated
- Apr 14, 2021
- Record last updated
- Apr 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20250520002471); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 40,652 in California → Look up another NPI →
Also registered at 900 Welch RD Ste 350
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Areeba Abid, MDStudent in an Organized Health Care Education/Training Program1982363941
- Dalton BrunsonStudent in an Organized Health Care Education/Training Program1730977281
- Claire CassianniStudent in an Organized Health Care Education/Training Program1538957063
- Brenda Castolo, AGACNP-BCNurse Practitioner1083195408
- Peter Davis-Allen, MDEmergency Medicine Physician1043839657
- Ursula Dean, BSN, RN, MSN, NPFamily Nurse Practitioner1063813350
Verify Shawna Greenleaf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024
17 Medicare Part D claims for 15 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D.
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
- Tacoma Emergency Care Physicians PLLCTacoma, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shawna Greenleaf among 40,652 student in an organized health care education/training program records in California
Shawna Greenleaf, 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 2021, is newer than 28% of them.
- NPI issued2021 · 28% of these records are older, 66% newer
- In a Medicare fileYes · 16% of these records are
- In the CMS Doctors and Clinicians fileYes · 6% of these records are
- Graduated2021 · median 2017 among the 2,409 with a school on file
- Record last updated2021 · 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.
All 40,652 in California → Every provider in Palo Alto → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Jerry Chen, M.D.Palo Alto, CA 943041760643837
- Ian Chen, M.D.Palo Alto, CA 943041477855294
- Allison Collins, M.D.Palo Alto, CA 943041215124268
- Susan FlatmoPalo Alto, CA 943041871613307
- Michael Friedberg, MAPalo Alto, CA 943041679898852
- Roni GavishPalo Alto, CA 943041811152770
- Emily JohnstonPalo Alto, CA 943041992020085
- Stephanie Knueppel, DDSPalo Alto, CA 943041942588116
Common questions
What is Shawna Greenleaf, MD's NPI number?
Shawna Greenleaf, MD's National Provider Identifier (NPI) is 1881275675, issued on Apr 14, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Shawna Greenleaf, MD located?
The NPPES record lists a practice address at 900 Welch RD Ste 350, Palo Alto, CA, 94304. Phone: (650) 736-9100. Providers update this record themselves, so call before visiting.
How can I verify Shawna Greenleaf, MD's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Shawna Greenleaf, MD prescribe under Medicare Part D?
In 2024, Shawna Greenleaf, MD had 17 Medicare Part D claims for 15 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.