MR. PARKER DON TIMOTHY PA
NPI 1619527371
Physician Assistant in Santa Rosa, CA

Q: What is Parker Timothy's NPI number?

The NPI number for Parker Timothy is 1619527371. It was assigned to this individual provider in the NPPES registry on September 16, 2019.

Q: What is Parker Timothy's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for Parker Timothy was last updated on December 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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 September 16, 2019PECOS EnrolledAccepts Medicare Assignment

86.7/100

CMS Quality Rating

3883 AIRWAY DR STE 165, SANTA ROSA, CA 95403(707) 521-7799 Get Directions Write a Review

NPPES record last updated: December 10, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 10, 2025, Dec 8, 2024, Oct 8, 2019 and 1 more (4 updates tracked since 2019).

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About Mr. Parker Don Timothy Pa NPPES

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

MR. PARKER DON TIMOTHY PA (NPI 1619527371) is an individual physician assistant in Santa Rosa, California, licensed in California (PA57489) and active in the NPI registry since September 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1619527371

Entity TypeIndividualMale

Primary Taxonomy363A00000X

Provider Legal NameMR. PARKER DON TIMOTHYCredential: PA

Location Address3883 AIRWAY DR STE 165Santa Rosa, CA 95403-1675

Mailing Address3883 Airway Dr Ste 165Santa Rosa, CA 95403-1675 · (707) 521-7799

Phone(707) 521-7799

Sole ProprietorNo

Medical School CMSOtherGraduated 2019

Enumeration DateSeptember 16, 2019

Last NPPES UpdateDecember 10, 20254 updates tracked since enumeration

NPPES CertifiedDecember 10, 2025

✔ NPI 1619527371 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in CA · PA57489

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

3883 AIRWAY DR STE 165, Santa Rosa, CA 95403

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Parker Don Timothy Pa 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 ID1951736115

PECOS Enrollment IDI20200115002778

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.

Areas of Expertise CMS Part B claims 13

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

431 services306 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

284 services215 patients

Aspiration and/or injection of fluid large joint using ultrasound guidance 20611

This procedure involves using ultrasound technology to accurately locate a large joint, usually the knee or shoulder. A needle is then inserted to either extract fluid (aspiration) or inject medication. The ultrasound helps ensure precision and safety.

216 services176 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

65 services65 patients

Injection, methylprednisolone acetate, 80 mg J1040

Methylprednisolone acetate is a strong anti-inflammatory medication. It is often given as an 80 mg injection to reduce inflammation and pain. It's commonly used for conditions like arthritis, allergic disorders, or other inflammatory diseases.

55 services49 patients

Prosthetic repair of shoulder joint, total shoulder 23472

Total shoulder prosthetic repair is a surgical procedure to replace a damaged shoulder joint with artificial components. It aims to relieve pain and restore mobility. The procedure involves replacing the ball (humeral head) and socket (glenoid) of the shoulder joint.

54 services54 patients

Shaving of part of shoulder bone and repair of ligament using an endoscope 29826

This procedure involves using a tiny camera, called an endoscope, to view and repair a damaged shoulder ligament. Simultaneously, a small portion of the shoulder bone is shaved to alleviate discomfort and improve movement. It's a minimally invasive technique that aids in a quicker recovery.

50 services49 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

50 services48 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

49 services48 patients

Removal of extensive shoulder joint tissue using an endoscope 29823

This procedure, known as arthroscopic debridement, involves using a small camera (endoscope) to view your shoulder joint. Damaged or unwanted tissue is then carefully removed. This minimally invasive technique aims to reduce pain and improve joint mobility.

38 services37 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

34 services31 patients

Incision of shoulder tendon 23405

An incision of the shoulder tendon is a surgical procedure where a small cut is made to access the affected tendon. It's typically done to repair damage, such as a tear, and can help to alleviate pain and restore shoulder function. The procedure is performed under anesthesia.

27 services27 patients

Repair of shoulder rotator cuff using an endoscope 29827

This procedure, known as arthroscopic rotator cuff repair, helps fix tears in the shoulder's rotator cuff. An endoscope, a small camera, is used to view the shoulder inside. Using small tools, the surgeon repairs the torn tissue. This minimally invasive approach often leads to a quicker recovery.

25 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95403 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

$96.16 typical visit price

range $63.04 – $187.01

Typical copayment $24.04 (range $15.76 – $46.75)

Most-billed visit code 99203

Established Patient

$77.94 typical visit price

range $21.02 – $153.40

Typical copayment $19.48 (range $5.25 – $38.35)

Most-billed visit code 99213

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

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.

86.7/100

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

Scored as part of a group practice

Quality

84.6

Promoting Interoperability

100

Improvement Activities

Cost

71.08

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.

ELISE B. ASGHAR MD

Orthopaedic Surgery (Sports Medicine)

3883 AIRWAY DR STE 165
SANTA ROSA, CA 95403

Sonoma County (707) 521-7799

MS. NANCY GOEBEL EVANS RNP

Nurse Practitioner (Obstetrics & Gynecology)

3883 AIRWAY DR STE 165, SUITE 3
SANTA ROSA, CA 95403

Sonoma County (707) 521-8930

PAUL VISCOGLIOSI PA

Physician Assistant (Medical)

3883 AIRWAY DR STE 165
SANTA ROSA, CA 95403

Sonoma County (707) 521-7799

DR. ROBERT BRIAN HAIMSON MD

Orthopaedic Surgery

3883 AIRWAY DR STE 165
SANTA ROSA, CA 95403

Sonoma County (707) 521-7799

KIMBERLEY ANN SCHORR APRN, MPH

Nurse Practitioner

3883 AIRWAY DR STE 165
SANTA ROSA, CA 95403

Sonoma County (707) 521-7799

JEFFREY MULVIHILL MD

Orthopaedic Surgery

3883 AIRWAY DR STE 165
SANTA ROSA, CA 95403

Sonoma County (707) 521-7799

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 Parker Timothy's NPI number?

The NPI number for Parker Timothy is 1619527371. It was assigned to this individual provider in the NPPES registry on September 16, 2019.

Where is Parker Timothy located?

Parker Timothy practices at 3883 Airway Dr Ste 165, Santa Rosa, CA 95403. The listed phone number is (707) 521-7799.

What is Parker Timothy's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Parker Timothy enrolled in Medicare?

Yes. Parker Timothy 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.

When was this NPI record last updated?

The NPPES record for Parker Timothy was last updated on December 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.