Kerri Elyse Rieger, MD, PHD
Anatomic Pathology & Clinical Pathology Physician · Palo Alto, CA
Kerri Elyse Rieger, MD, PHD is an anatomic pathology & clinical pathology physician with a practice address in Palo Alto, California, and NPI 1336333475, issued on Aug 31, 2007. Check the license (California A101071, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kerri Elyse Rieger
- Credential
- MD, PHD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- A101071 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Palo Alto, CA 94304
- Phone
- (650) 723-6316
- Enumerated
- Aug 31, 2007
- Record last updated
- Jul 9, 2026
- Fax
- (650) 723-7796
- Medicare enrollment
- Enrolled (PECOS I20100330001143); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 1,554 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elias Aboujaoude, MDPsychiatry Physician1649209768
- Connor Adams, PSYDClinical Psychologist1467081216
- Terence Ahern, MDEmergency Medicine Physician1104195916
- Teddy Akiki, MDPsychiatry Physician1942867718
- Amy Alexander, M.D.Psychiatry Physician1740435486
- Monica Allen, PSYDClinical Psychologist1952787749
Verify Kerri Elyse Rieger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A101071Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average anatomic pathology & clinical pathology physician in 2024
115 Medicare Part D claims for 24 beneficiaries, against an average of 192 among the 401 providers of this specialty who prescribed in Part D.
Most prescribed
- Ketoconazole25 claims
- Hydrocortisone14 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
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.
Kerri Elyse Rieger among 1,554 anatomic pathology & clinical pathology physician records in California
Kerri Elyse Rieger, MD, PHD is one of 1,554 anatomic pathology & clinical pathology physician 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 2007, is newer than 43% of them.
- NPI issued2007 · 43% of these records are older, 43% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2006 · median 2003 among the 891 with a school on file
- Record last updated2026 · 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 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in California
There are 1,554 anatomic pathology & clinical pathology physician records in California.
All 1,554 in California → Every provider in Palo Alto → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Stephen Chen, M.D.Palo Alto, CA 943041508960741
- Melissa Clark, M.D.Palo Alto, CA 943041811177058
- Susan Galel, M.D.Palo Alto, CA 943041821144320
- Dita Gratzinger, MD, PHDPalo Alto, CA 943041710183116
- Reetesh PaiPalo Alto, CA 943041962608364
- Kimberly Allison, MDStanford, CA 943051184661811
- Chisa Aoyama, MDStanford, CA 943051770599276
- Gerald Berry, MDStanford, CA 943051770678427
Common questions
What is Kerri Elyse Rieger, MD, PHD's NPI number?
Kerri Elyse Rieger, MD, PHD's National Provider Identifier (NPI) is 1336333475, issued on Aug 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kerri Elyse Rieger, MD, PHD located?
The NPPES record lists a practice address at 300 Pasteur Dr, Palo Alto, CA, 94304. Phone: (650) 723-6316. Providers update this record themselves, so call before visiting.
How can I verify Kerri Elyse Rieger, MD, PHD's license?
NPPES lists California license number A101071, 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 Kerri Elyse Rieger, MD, PHD prescribe under Medicare Part D?
In 2024, Kerri Elyse Rieger, MD, PHD had 115 Medicare Part D claims for 24 beneficiaries; the average among anatomic pathology & clinical pathology physician prescribers was 192. Part D covers Medicare prescriptions only.
What is Kerri Elyse Rieger, MD, PHD's MIPS final score?
The 2023 MIPS final score is 76.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.