Mark Turrill, M.D.
NPI 1568542314 · Hematology & Oncology Physician · Lakeport, CA
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Turrill, M.D. is a Hematology & Oncology Physician provider in Lakeport, CA (NPI 1568542314).
Provider details
- NPI number
- 1568542314
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G66868 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,740 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 1,426 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,366 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 693 | $182 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 332 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 278 | $130 |
| Administration of Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96402 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 60 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 159 | 39 |
| Prednisone | 102 | 23 |
| Gabapentin | 70 | 14 |
| Amlodipine Besylate | 69 | 15 |
| Alendronate Sodium | 66 | 11 |
| Levothyroxine Sodium | 66 | 15 |
| Abiraterone Acetate | 65 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$262 across 12 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-16
- Last updated
- 2021-11-11
- Certified
- 2021-11-11
Frequently asked questions
- What is Mark Turrill's NPI number?
- Mark Turrill's National Provider Identifier (NPI) is 1568542314, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Turrill's specialty?
- Mark Turrill is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Turrill located?
- Mark Turrill's practice location on file with NPPES is 5150 Hill Rd E Ste F, Lakeport, CA 95453-5100.
- What is Mark Turrill's phone number?
- The practice phone number listed in the NPPES registry for Mark Turrill is (707) 262-3060.
- Does Mark Turrill accept Medicare?
- Mark Turrill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Turrill's NPI active?
- Yes — Mark Turrill's NPI (1568542314) is active in the NPPES registry as of the last update on 2021-11-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.