DR. DAVID T HARRISON M.D.
NPI 1346265436
Internal Medicine - Hematology & Oncology in San Luis Obispo, CA

Q: What is David Harrison's NPI number?

The NPI number for David Harrison is 1346265436. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Q: What is David Harrison's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for David Harrison was last updated on December 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 12, 2006PECOS Enrolled

715 TANK FARM RD STE C, SAN LUIS OBISPO, CA 93401(805) 543-5577 Get Directions Write a Review

NPPES record last updated: December 27, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 27, 2022, Jul 2, 2021 (2 updates tracked since 2021).

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About Dr. David T Harrison M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DAVID T HARRISON M.D. (NPI 1346265436) is an individual hematology & oncology provider in San Luis Obispo, California, licensed in California (C37637) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1346265436

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameDR. DAVID T HARRISONCredential: M.D.

Location Address715 TANK FARM RD STE CSan Luis Obispo, CA 93401-7068

Mailing Address715 Tank Farm Rd Ste CSan Luis Obispo, CA 93401-7068 · (805) 543-5577 · Fax (805) 595-3231

Phone(805) 543-5577

Sole ProprietorNo

Enumeration DateJuly 12, 2006

Last NPPES UpdateDecember 27, 20222 updates tracked since enumeration

NPPES CertifiedDecember 27, 2022

✔ NPI 1346265436 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in CA · C37637

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedInternal Medicine · HematologyTaxonomy 207RH0000X · License C37637 (CA)

Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X · License C37637 (CA)

715 TANK FARM RD STE C, San Luis Obispo, CA 93401

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. David T Harrison M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show David Harrison reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Of The Univ Of Ca

232 mi

Clinical Child & Adolescent

2825 50TH ST
Sacramento, CA 95817

Reassigned Medicare billing, California enrollment
2,570 clinicians in this Medicare group

NPI 1447423959 (916) 703-0315

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$178.89 typical visit price

range $59.84 – $178.89

Typical copayment $44.72 (range $14.96 – $44.72)

Most-billed visit code 99205

Established Patient

$104.82 typical visit price

range $19.70 – $146.55

Typical copayment $26.20 (range $4.92 – $36.63)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. GORGUN AKPEK M.D., M.H.S.

Internal Medicine (Hematology & Oncology)