Kristin Boger Gershfield, MD
Hospitalist Physician · Redwood City, CA
Kristin Boger Gershfield, MD is a hospitalist physician with a practice address in Redwood City, California, and NPI 1124030614, issued on Aug 12, 2006. Check the license (California A74001, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kristin Boger Gershfield
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A74001 CA
Self-reported in NPPES; status is on the state search - Practice location
- 170 Alameda DE Las Pulgas, Redwood City, CA 94062
- Phone
- (650) 369-5811
- Enumerated
- Aug 12, 2006
- Record last updated
- Oct 3, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicaid ID
- 00A740010 CA
- Medicare enrollment
- Enrolled (PECOS I20040412000790); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 170 Alameda DE Las Pulgas
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah AbuseifHospitalist Physician1801281795
- David Adams, M.DEmergency Medicine Physician1891735643
- Michele AdkissonPerfusionist1831321447
- Jyothi Adsumilli, M.D.,Hospitalist Physician1245508159
- Ari AuwinitzkyPerfusionist1629585583
- Marjorie Berry Simon, LCSWClinical Social Worker1639477532
Verify Kristin Boger Gershfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A74001Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average hospitalist physician in 2024
71 Medicare Part D claims for 40 beneficiaries, against an average of 521 among the 21,613 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 72 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).
Bills Medicare through one group practice
- Vituity Hospitalists PCRedwood City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kristin Boger Gershfield among 3,099 hospitalist physician records in California
Kristin Boger Gershfield, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 73% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1999 · median 2010 among the 2,505 with a school on file
- Record last updated2017 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Redwood City → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Sarah AbuseifRedwood City, CA 940621801281795
- Jyothi Adsumilli, M.D.,Redwood City, CA 940621245508159
- Tina Chang, MDRedwood City, CA 940621255417770
- Michael Eiffert, MDRedwood City, CA 940621508878471
- Swati Mehta, MDRedwood City, CA 940621376709923
- Anamika Neralla, MDRedwood City, CA 940621437611522
- David Pusateri, MDRedwood City, CA 940621245242155
- Ernest Lau, MDRedwood City, CA 940631255419842
Common questions
What is Kristin Boger Gershfield, MD's NPI number?
Kristin Boger Gershfield, MD's National Provider Identifier (NPI) is 1124030614, issued on Aug 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kristin Boger Gershfield, MD located?
The NPPES record lists a practice address at 170 Alameda DE Las Pulgas, Redwood City, CA, 94062. Phone: (650) 369-5811. Providers update this record themselves, so call before visiting.
How can I verify Kristin Boger Gershfield, MD's license?
NPPES lists California license number A74001, 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 Kristin Boger Gershfield, MD prescribe under Medicare Part D?
In 2024, Kristin Boger Gershfield, MD had 71 Medicare Part D claims for 40 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Kristin Boger Gershfield, MD's MIPS final score?
The 2023 MIPS final score is 72 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.