Harold Fletcher Keyserling, M.D.
Diagnostic Neuroimaging (Radiology) Physician · Sacramento, CA
Harold Fletcher Keyserling, M.D. is a diagnostic neuroimaging (radiology) physician with a practice address in Sacramento, California, and NPI 1023035995, issued on Jul 16, 2006. Check the license (California C198022, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Harold Fletcher Keyserling
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Neuroimaging (Radiology) Physician 2085D0003X
- License numbers
- C198022 CA
782376 CA
200201269 NC
Self-reported in NPPES; status is on the state search - Practice location
- 3161 L St, Sacramento, CA 95816
- Phone
- (916) 878-3495
- Enumerated
- Jul 16, 2006
- Record last updated
- Nov 14, 2025
- Fax
- (916) 736-5533
- Medicare enrollment
- Enrolled (PECOS I20250224002012); accepts Medicare assignment
- Medical or professional school
- Medical College Of Georgia School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest diagnostic neuroimaging (radiology) physician records → All 49 in California → Look up another NPI →
Also registered at 3161 L St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Alexander, M.D.Vascular & Interventional Radiology Physician1578899662
- Henry Andoh, M.D.Neuroradiology Physician1699021378
- Hesham Attaya, MDDiagnostic Radiology Physician1447413802
- Gautam Bahl, MDDiagnostic Radiology Physician1952562209
- George Bolton, M.D.Diagnostic Radiology Physician1568469708
- Roy Bonk, M.D.Diagnostic Radiology Physician1316993249
Verify Harold Fletcher Keyserling in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C198022Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Sutter Valley Medical FoundationRoseville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Harold Fletcher Keyserling among 49 diagnostic neuroimaging (radiology) physician records in California
Harold Fletcher Keyserling, M.D. is one of 49 diagnostic neuroimaging (radiology) physician records with a practice address in California. 96% 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, 78% newer
- In a Medicare fileYes · 96% of these records are
- In the CMS Doctors and Clinicians fileYes · 94% of these records are
- Graduated1999 · median 2006 among the 46 with a school on file
- Record last updated2025 · 16% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085D0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Neuroimaging (Radiology) Physician providers in California
There are 49 diagnostic neuroimaging (radiology) physician records in California.
All 49 in California → Every provider in Sacramento → Diagnostic Neuroimaging (Radiology) Physician nationwide →
The 8 diagnostic neuroimaging (radiology) physician records with the nearest ZIP codes
- Brij Kapadia, M.D.San Leandro, CA 945771972787349
- Kai-Yin See, MDSan Leandro, CA 945771003246869
- Andrew Chiu, MDStanford, CA 943051801213772
- Johannes Decker, MDStanford, CA 943051558892075
- Madhavi Duvvuri, MDStanford, CA 943051538604442
- Syed Hashmi, MDStanford, CA 943051992060198
- Dale Jamison, MDStanford, CA 943051912392887
- Shweta Kumar, MDStanford, CA 943051417488446
Common questions
What is Harold Fletcher Keyserling, M.D.'s NPI number?
Harold Fletcher Keyserling, M.D.'s National Provider Identifier (NPI) is 1023035995, issued on Jul 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Harold Fletcher Keyserling, M.D. located?
The NPPES record lists a practice address at 3161 L St, Sacramento, CA, 95816. Phone: (916) 878-3495. Providers update this record themselves, so call before visiting.
How can I verify Harold Fletcher Keyserling, M.D.'s license?
NPPES lists California license number C198022, 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.
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.