Dennis Turnbull, DO
Anesthesiology Physician · Porterville, CA
Dennis Turnbull, DO is an anesthesiology physician with a practice address in Porterville, California, and NPI 1417526757, issued on Jun 22, 2021. Check the license (California 20425, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Dennis Turnbull
- Credential
- DO
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 20425 CA
Self-reported in NPPES; status is on the state search - Practice location
- 465 W Putnam Ave, Porterville, CA 93257
- Phone
- (559) 784-1110
- Enumerated
- Jun 22, 2021
- Record last updated
- Jul 15, 2024
- Medicare enrollment
- Enrolled (PECOS I20230522002827); accepts Medicare assignment
- Medical or professional school
- Rocky Vista University College Of Osteopathic Med, 2021
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 465 W Putnam Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Dennis Turnbull in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20425Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average anesthesiology physician in 2024
301 Medicare Part D claims for 120 beneficiaries, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Azithromycin26 claims
- Prednisone26 claims
- Metoprolol Succinate15 claims
- Furosemide13 claims
- Lisinopril13 claims
- Atorvastatin Calcium12 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.
Industry payments in 2024: $76.33
4 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Galen Inpatient Physicians PCTehachapi, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dennis Turnbull among 7,571 anesthesiology physician records in California
Dennis Turnbull, DO is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 95% of them.
- NPI issued2021 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2021 · median 2006 among the 4,868 with a school on file
- Record last updated2024 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 anesthesiology physician records list a practice address in Porterville
They are 11 of the 795 NPPES records with a practice address in Porterville, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Porterville → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Byung Cho, M.D.Porterville, CA 932571740290238
- Vivek Dalal, MDPorterville, CA 932571629368261
- Mohan Ettyreddy, MDPorterville, CA 932571407807100
- Joseph Ipe, MDPorterville, CA 932571588638399
- Kuldeep Jagpal, M.D.Porterville, CA 932571780647750
- Ernesto Jimenez, M.D.Porterville, CA 932571124090436
- John Nadakavukaran, MDPorterville, CA 932571164582177
- Alex Preston, MDPorterville, CA 932571700857968
Common questions
What is Dennis Turnbull, DO's NPI number?
Dennis Turnbull, DO's National Provider Identifier (NPI) is 1417526757, issued on Jun 22, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Dennis Turnbull, DO located?
The NPPES record lists a practice address at 465 W Putnam Ave, Porterville, CA, 93257. Phone: (559) 784-1110. Providers update this record themselves, so call before visiting.
How can I verify Dennis Turnbull, DO's license?
NPPES lists California license number 20425, 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 Dennis Turnbull, DO prescribe under Medicare Part D?
In 2024, Dennis Turnbull, DO had 301 Medicare Part D claims for 120 beneficiaries; the average among anesthesiology physician prescribers was 402. 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.