NPPES file of Aug 9, 2026

Grace Erin Oppenheim, NP

Nurse Practitioner · Stanford, CA

Grace Erin Oppenheim, NP is a nurse practitioner with a practice address in Stanford, California, and NPI 1013355411, issued on Jun 6, 2013. Check the license (California 95032250, as entered in NPPES) 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
1013355411
Name
Grace Erin Oppenheim
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
95032250 CA
SP012894 PA
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Dr, Stanford, CA 94305
Phone
(650) 723-4000
Enumerated
Jun 6, 2013
Record last updated
Sep 19, 2025
Medicaid ID
102878949 PA
Medicare enrollment
Enrolled (PECOS I20180813002656); accepts Medicare assignment
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 300 Pasteur Dr

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

  1. Cooper Aakhus, MDEmergency Medicine Physician1194351007
  2. Oliver Aalami, M.D.Vascular Surgery Physician1225229024
  3. Alistair Aaronson, MDInternal Medicine Physician1457628760
  4. Sumaira Aasi, MDMOHS-Micrographic Surgery Physician1780675181
  5. Fahim Abbasi, M.D.Internal Medicine Physician1841484037
  6. Mohamad Abbass, MDNeurological Surgery Physician1679492151

Verify Grace Erin Oppenheim in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 95032250
    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
Find 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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94% fewer Medicare Part D claims than the average nurse practitioner in 2024

61 Medicare Part D claims for 33 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Grace Oppenheim61
  2. Specialty average1,109

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.

2 hospitals and group practices

  1. Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
  2. Providence Health And Services- WashingtonEverett, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Grace Erin Oppenheim among 8,223 nurse practitioner records in California

Grace Erin Oppenheim, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 39% of them.

  • NPI issued2013 · 39% of these records are older, 58% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2012 · median 2017 among the 3,425 with a school on file
  • Record last updated2025 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

572 nurse practitioner records list a practice address in Stanford

They are 572 of the 5,606 NPPES records with a practice address in Stanford, and 8,223 nurse practitioner records in California.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Julie Anderson, N.P.Stanford, CA 943051346285160
  2. Karen Bayuk, N.P.Stanford, CA 943051639114069
  3. Debra BolandStanford, CA 943051477581668
  4. Nicole Boramanand, APRNStanford, CA 943051790768240
  5. Lizbeth Flores-Byrne, RN, NPStanford, CA 943051366496945
  6. Thea Hess, NPStanford, CA 943051124080502
  7. Miranda Kramer, RN, NPStanford, CA 943051821035122
  8. Kevin Letz, DNP, NPPalo Alto, CA 943051487617064

Common questions

What is Grace Erin Oppenheim, NP's NPI number?

Grace Erin Oppenheim, NP's National Provider Identifier (NPI) is 1013355411, issued on Jun 6, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Grace Erin Oppenheim, NP located?

The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.

How can I verify Grace Erin Oppenheim, NP's license?

NPPES lists California license number 95032250, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Grace Erin Oppenheim, NP prescribe under Medicare Part D?

In 2024, Grace Erin Oppenheim, NP had 61 Medicare Part D claims for 33 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.