Charles Allen Stillman, D.O.
Diagnostic Radiology Physician · Stockton, CA
Charles Allen Stillman, D.O. is a diagnostic radiology physician with a practice address in Stockton, California, and NPI 1508836453, issued on Jan 24, 2006. Check the license (California 20A11027, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charles Allen Stillman
- Credential
- D.O.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 20A11027 CA
Self-reported in NPPES; status is on the state search - Practice location
- 546 E Pine St, Stockton, CA 95204
- Phone
- (209) 467-1000
- Enumerated
- Jan 24, 2006
- Record last updated
- Mar 25, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (209) 467-7335
- Medicaid ID
- 1508836453 CA
- Medicare enrollment
- Enrolled (PECOS I20100512000410); accepts Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 1995
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 546 E Pine St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Dietrich, MDDiagnostic Radiology Physician1053341669
- William Federal, M.D.Diagnostic Radiology Physician1659413664
Verify Charles Allen Stillman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A11027Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 0 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Valley Mri And Radiology IncStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Allen Stillman among 4,500 diagnostic radiology physician records in California
Charles Allen Stillman, D.O. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1995 · median 2004 among the 3,130 with a school on file
- Record last updated2020 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in California
There are 4,500 diagnostic radiology physician records in California.
All 4,500 in California → Every provider in Stockton → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Daniel Dietrich, MDStockton, CA 952041053341669
- William Federal, M.D.Stockton, CA 952041659413664
- Jack Funamura, M.D.Stockton, CA 952041407915739
- Pavan Khanna, M.D.Stockton, CA 952041891936795
- Nazar Alsaffar, MDStockton, CA 952031922099332
- David Bowen, MDStockton, CA 952101255419149
- Wuyen David Huang, MDStockton, CA 952101861571630
- Michael Kobayashi, MDStockton, CA 952101831317684
Common questions
What is Charles Allen Stillman, D.O.'s NPI number?
Charles Allen Stillman, D.O.'s National Provider Identifier (NPI) is 1508836453, issued on Jan 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles Allen Stillman, D.O. located?
The NPPES record lists a practice address at 546 E Pine St, Stockton, CA, 95204. Phone: (209) 467-1000. Providers update this record themselves, so call before visiting.
How can I verify Charles Allen Stillman, D.O.'s license?
NPPES lists California license number 20A11027, 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.
What is Charles Allen Stillman, D.O.'s MIPS final score?
The 2023 MIPS final score is 0 of 100. 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.