Gary Mitchell Westbrock, PA
- Part D claims, 2024
- 180
- Hospital affiliations
- 2
- Industry payments
- $334
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 1400 E Church St, Santa Maria, CA 93454
- Practice phone
- Call (805) 739-3100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Gary Westbrock's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Gary Mitchell Westbrock is a physician assistant in Santa Maria, California
Gary Westbrock practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health.
Gary Westbrock's NPI, 1053371377, was assigned on March 23, 2006. Gary Westbrock holds California license PA16139.
- NPI
- 1053371377NPI Registry (opens in a new tab)
- NPI enumeration date
- March 23, 2006
- NPI status
- Active
- Practice phone
- (805) 739-3100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Gary Mitchell Westbrock practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California
Gary Westbrock's primary practice is Dignity Health - Marian Regional Medical Center, at 1400 E Church St, Santa Maria, CA 93454 in Santa Barbara County. The practice phone is (805) 739-3100.
- Dignity Health - Marian Regional Medical Center1400 E Church St, Santa Maria, CA 93454 · Santa Barbara CountyPhone(805) 739-3100
Source: Dmand AI Affiliation Data
Gary Mitchell Westbrock is affiliated with 3 sites of care
Gary Westbrock's primary practice is Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health. Dmand AI also links Gary Westbrock to 1 hospital and 1 physician office, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Gary Mitchell Westbrock's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gary Westbrock practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Marian Regional Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Gary Mitchell Westbrock is one of 11,482 physician assistants in California
Physician assistant is Gary Westbrock's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Gary Westbrock is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Gary Westbrock
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Gary Mitchell Westbrock's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Gary Westbrock's median patient age at 72, with 37% women.
Gary Westbrock's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women37%
- Men63%
Source: Dmand AI Patient Panel Data
Gary Mitchell Westbrock wrote 180 Medicare Part D claims in 2024
In 2024, Gary Westbrock wrote 180 Medicare Part D claims for 66 patients. 98% of them were for generic drugs.
Gary Westbrock's Part D claims by kind of drug, 2024
- Generic176 claims98%
- Brand-name and other4 claims2%
Drug classes CMS tracks in Gary Westbrock's Part D claims, 2024
- Antibiotics12%22 of 180 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Gary Mitchell Westbrock received $334 in industry payments in 2025
CMS Open Payments shows 3 general payments to Gary Westbrock from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $125.
Companies that paid Gary Westbrock the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Gary Mitchell Westbrock's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Gary Mitchell Westbrock
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gary Mitchell Westbrock's NPI number?
Gary Mitchell Westbrock's NPI number is 1053371377. It was assigned on March 23, 2006, and it is active in the NPI Registry.
What does Gary Mitchell Westbrock specialize in?
Gary Mitchell Westbrock is a physician assistant in Santa Maria, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Gary Mitchell Westbrock practice?
Gary Westbrock practices at 1400 E Church St, Santa Maria, CA 93454. Gary Westbrock's primary practice is Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health. Dmand AI also links Gary Westbrock to 1 hospital and 1 physician office.
What is Gary Mitchell Westbrock's office phone number?
The practice phone on file for Gary Westbrock is (805) 739-3100.
What is Gary Mitchell Westbrock's medical license number?
Gary Westbrock holds California license PA16139.
Which hospitals is Gary Mitchell Westbrock affiliated with?
Gary Westbrock practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California. Dmand AI links Gary Westbrock to 1 more hospital.
Has Gary Mitchell Westbrock received payments from drug or device companies?
CMS Open Payments shows $334 in general payments to Gary Westbrock from 3 companies from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Gary Mitchell Westbrock been practicing?
Gary Westbrock's NPI was assigned in 2006.
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