Steven C. Shifflett, MD
Addiction Medicine (Internal Medicine) Physician · Lakeport, CA
Steven C. Shifflett, MD is an addiction medicine (internal medicine) physician with a practice address in Lakeport, California, and NPI 1558371641, issued on Aug 9, 2006. Check the license (California G58128, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven C. Shifflett
- Credential
- MD
- Primary taxonomy
- Addiction Medicine (Internal Medicine) Physician 207RA0401X
- License number
- G58128 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5176 Hill Road E., Lakeport, CA 95453
- Phone
- (707) 262-5000
- Enumerated
- Aug 9, 2006
- Record last updated
- Jan 11, 2023
- Medicaid ID
- 00G581280 CA
- Entity
- Type 1 · individual
8 nearest addiction medicine (internal medicine) physician records → All 73 in California → Look up another NPI →
Also registered at 5176 Hill Road E.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carleene Cady, NPPersonal Emergency Response Attendant1063422954
- Bruce Deas, MDInternal Medicine Physician1639189715
- Edward Fedun, MDEmergency Medicine Physician1982614061
- Garrel Miller, PAPersonal Emergency Response Attendant1760492862
- Ronald Miller, PAPersonal Emergency Response Attendant1891705786
Verify Steven C. Shifflett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G58128Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average addiction medicine (internal medicine) physician in 2024
32 Medicare Part D claims, against an average of 829 among the 401 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Nitro-Bid12 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.
Steven C. Shifflett among 73 addiction medicine (internal medicine) physician records in California
Steven C. Shifflett, MD is one of 73 addiction medicine (internal medicine) physician records with a practice address in California. 75% 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 1% of them.
- NPI issued2006 · 1% of these records are older, 51% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2023 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0401X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Addiction Medicine (Internal Medicine) Physician providers in California
There are 73 addiction medicine (internal medicine) physician records in California.
All 73 in California → Every provider in Lakeport → Addiction Medicine (Internal Medicine) Physician nationwide →
The 8 addiction medicine (internal medicine) physician records with the nearest ZIP codes
- Everett AllenEureka, CA 955011437615879
- John Hibbard, M.D.Santa Rosa, CA 954011649361668
- Mark Towns, M.D.Galt, CA 956321811183643
- Anthony Albanese, M.D.Mather, CA 956551215910187
- Felipe Bolivar RinconStockton, CA 952101164975330
- Sangeetha Raghuraman, MDSan Jose, CA 951281396814356
- Nazanin Ahmadieh, DOSacramento, CA 958171124524988
- Angella Barr, MDSacramento, CA 958251457588964
Common questions
What is Steven C. Shifflett, MD's NPI number?
Steven C. Shifflett, MD's National Provider Identifier (NPI) is 1558371641, issued on Aug 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven C. Shifflett, MD located?
The NPPES record lists a practice address at 5176 Hill Road E., Lakeport, CA, 95453. Phone: (707) 262-5000. Providers update this record themselves, so call before visiting.
How can I verify Steven C. Shifflett, MD's license?
NPPES lists California license number G58128, 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 Steven C. Shifflett, MD prescribe under Medicare Part D?
In 2024, Steven C. Shifflett, MD had 32 Medicare Part D claims; the average among addiction medicine (internal medicine) physician prescribers was 829. 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.