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ANDREW P HORSLEY M.D.
NPI 1417020942
Anesthesiology in Freedom, CA

Active since November 15, 2006PECOS Enrolled
160 GREEN VALLEY RD STE 101, FREEDOM, CA 95019(209) 956-7732(831) 763-9799 Get Directions Write a Review

NPPES record last updated: May 1, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Andrew P Horsley M.d. NPPES

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

ANDREW P HORSLEY M.D. (NPI 1417020942) is an individual anesthesiology provider in Freedom, California, licensed in California (A73934) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Monterey.

NPPES Registry Identity

NPI1417020942
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameANDREW P HORSLEYCredential: M.D.
Location Address160 GREEN VALLEY RD STE 101Freedom, CA 95019-3160
Mailing AddressPo Box 7096Stockton, CA 95267-0096 · (209) 956-7725 · Fax (209) 956-7733
Phone(209) 956-7732
Fax(831) 763-9799
Sole ProprietorYes
Enumeration DateNovember 15, 2006
Last NPPES UpdateMay 1, 2020
NPPES CertifiedMay 1, 2020
✔ NPI 1417020942 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A73934
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
160 GREEN VALLEY RD STE 101, Freedom, CA 95019
Open in Google Maps ↗

Secondary Practice Location 1

Location 123625 Holman HwyMonterey, CA 93940-5902 · Phone (209) 956-7732

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Andrew P Horsley 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 Andrew Horsley reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ventana Anesthesia Associates Inc
26 mi
Anesthesiology
23625 HOLMAN HWY
Monterey, CA 93940
  • Reassigned Medicare billing, California enrollment
  • 34 clinicians in this Medicare group
NPI 1699094409 (831) 624-5311

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
166 services145 patients

Other Providers at the Same Location NPPES

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

ANGELA MOLINA MD
Anesthesiology
160 GREEN VALLEY RD STE 101
FREEDOM, CA 95019
Santa Cruz County (831) 763-9700

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Andrew Horsley's NPI number?

The NPI number for Andrew Horsley is 1417020942. It was assigned to this individual provider in the NPPES registry on November 15, 2006.

Where is Andrew Horsley located?

Andrew Horsley practices at 160 Green Valley Rd Ste 101, Freedom, CA 95019. The listed phone number is (209) 956-7732.

What is Andrew Horsley's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Andrew Horsley enrolled in Medicare?

Yes. Andrew Horsley is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Andrew Horsley's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Horsley reassigns Medicare benefits to Ventana Anesthesia Associates Inc (Monterey, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Andrew Horsley's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Andrew Horsley was last updated on May 1, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.