Mark Turrill, M.D.
Hematology & Oncology Physician · Lakeport, CA
Mark Turrill, M.D. is a hematology & oncology physician with a practice address in Lakeport, California, and NPI 1568542314, issued on Oct 16, 2006. Check the license (California G66868, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Turrill
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- G66868 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5150 Hill RD E Ste F, Lakeport, CA 95453
- Phone
- (707) 262-3060
- Enumerated
- Oct 16, 2006
- Record last updated
- Nov 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (707) 262-3062
- Medicaid ID
- 00G668680 CA
- Medicare enrollment
- Enrolled (PECOS I20080610000605); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Verify Mark Turrill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G66868Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average hematology & oncology physician in 2024
2,442 Medicare Part D claims for 280 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 259 claims were for opioids.
Most prescribed
- Anastrozole159 claims
- Prednisone102 claims
- Gabapentin70 claims
- Amlodipine Besylate69 claims
- Alendronate Sodium66 claims
- Levothyroxine Sodium66 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: $261.74
12 payments; by number, the most common kind was food and beverage; the largest payer was Celgene Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 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 2 group practices
- Providence Medical FoundationSanta Rosa, CA
- Sutter Bay HospitalsLakeport, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Turrill among 1,583 hematology & oncology physician records in California
Mark Turrill, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 83% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 54% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1988 · median 2003 among the 1,124 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Lakeport → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- John Rochat, M.D.Fort Bragg, CA 954371770508616
- Hengbing Wang, M.D.Ukiah, CA 954821497940191
- Marek Bozdech, M.D.Santa Rosa, CA 954051679590509
- Helen Collins, M.D.Santa Rosa, CA 954051326060617
- Henry Greene, M.D.Eureka, CA 955011659312627
- Elie Richa, M.D.Eureka, CA 955011518937838
- Cory Spencer, MDEureka, CA 955011578669149
- Nicolaj Andersen, MDSanta Rosa, CA 954031659455640
Common questions
What is Mark Turrill, M.D.'s NPI number?
Mark Turrill, M.D.'s National Provider Identifier (NPI) is 1568542314, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Turrill, M.D. located?
The NPPES record lists a practice address at 5150 Hill RD E Ste F, Lakeport, CA, 95453. Phone: (707) 262-3060. Providers update this record themselves, so call before visiting.
How can I verify Mark Turrill, M.D.'s license?
NPPES lists California license number G66868, 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 Mark Turrill, M.D. prescribe under Medicare Part D?
In 2024, Mark Turrill, M.D. had 2,442 Medicare Part D claims for 280 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.