DR. PETER THORNHILL MD, MS
NPI 1982010443
Anesthesiology in Santa Rosa, CA

Q: What is Peter Thornhill's NPI number?

The NPI number for Peter Thornhill is 1982010443. It was assigned to this individual provider in the NPPES registry on July 5, 2014.

Q: What is Peter Thornhill's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Peter Thornhill was last updated on November 19, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 05, 2014PECOS EnrolledAccepts Medicare Assignment

88.2/100

CMS Quality Rating

719 SPRING ST, SANTA ROSA, CA 95404(707) 524-4690 Get Directions Write a Review

NPPES record last updated: November 19, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. Peter Thornhill Md, Ms NPPES

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

DR. PETER THORNHILL MD, MS (NPI 1982010443) is an individual anesthesiology provider in Santa Rosa, California, licensed in California (A149703) and active in the NPI registry since July 2014. He is enrolled in Medicare PECOS, maintains a secondary practice location in Brooklyn, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1982010443

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. PETER THORNHILLCredential: MD, MS

Location Address719 SPRING STSanta Rosa, CA 95404-3901

Mailing Address719 Spring StSanta Rosa, CA 95404-3901 · (707) 524-4690

Phone(707) 524-4690

Sole ProprietorNo

Medical School CMSOtherGraduated 2013

Enumeration DateJuly 5, 2014

Last NPPES UpdateNovember 19, 2018

✔ NPI 1982010443 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · A149703

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.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

719 SPRING ST, Santa Rosa, CA 95404

Open in Google Maps ↗

Secondary Practice Location 1

Location 1590 7th Ave Apt 3Brooklyn, NY 11215-6444 · Phone (646) 400-3281

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Peter Thornhill Md, Ms is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4981970407

PECOS Enrollment IDI20171026003176

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 Peter Thornhill reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Anesthesia & Analgesia Medical Group, Inc.

1.1 mi

Anesthesiology

2455 BENNETT VALLEY RD STE C219
Santa Rosa, CA 95404

Reassigned Medicare billing, California enrollment
140 clinicians in this Medicare group

NPI 1659320984 (707) 522-1800

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 7

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 other procedure on large bowel using an endoscope 00811

Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.

60 services60 patients

Insertion of artery tube for blood sampling or infusion through skin 36620

This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.

27 services27 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

24 services24 patients

Anesthesia for procedure on small and large bowel using an endoscope 00813

Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.

21 services21 patients

Anesthesia for procedure to assess heart electrical activity 00537

Anesthesia for a procedure to assess heart electrical activity helps ensure comfort and relaxation. It involves administering medication that either numbs a specific area or makes you sleep temporarily. This allows doctors to safely examine your heart's electrical signals without causing discomfort.

14 services14 patients

Anesthesia for extensive surgery on spine 00670

Anesthesia for extensive spine surgery involves medication to block pain and make you unconscious during the procedure. It ensures comfort and prevents movement. Two types may be used: general (you sleep) or regional (numbs a large area). The choice depends on the surgery specifics and your health.

14 services14 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

88.2/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

84.57

Improvement Activities

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 Peter Thornhill's NPI number?

The NPI number for Peter Thornhill is 1982010443. It was assigned to this individual provider in the NPPES registry on July 5, 2014.

Where is Peter Thornhill located?

Peter Thornhill practices at 719 Spring St, Santa Rosa, CA 95404. The listed phone number is (707) 524-4690.

What is Peter Thornhill's specialty?

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

Is Peter Thornhill enrolled in Medicare?

Yes. Peter Thornhill is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Peter Thornhill's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Thornhill reassigns Medicare benefits to Anesthesia & Analgesia Medical Group, Inc. (Santa Rosa, 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 Peter Thornhill'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 Peter Thornhill was last updated on November 19, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.