Dr. Stephen Alexander Westerhout, MD
- Medicare services, 2019
- 16
- Industry payments
- $297
- Medical group
- 1
- State licenses
- 3
- Year NPI issued
- 2006
- Practice address
- 4968 Booth Cir, Irvine, CA 92604
- Practice phone
- Call (949) 701-4454
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Orange County Plastic Surgery Center, LLC
Irvine, California
Find Dr. Westerhout'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.
Dr. Stephen Alexander Westerhout is an anesthesiologist in Irvine, California
Dr. Westerhout practices at Orange County Plastic Surgery Center, LLC in Irvine, California.
Dr. Westerhout's NPI, 1679513279, was assigned on June 8, 2006. Dr. Westerhout graduated from Loma Linda University School Of Medicine in 1998. Dr. Westerhout holds California license A76842.
- NPI
- 1679513279NPI Registry (opens in a new tab)
- NPI enumeration date
- June 8, 2006
- NPI status
- Active
- Practice phone
- (949) 701-4454
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Stephen Alexander Westerhout practices at Orange County Plastic Surgery Center, LLC in Irvine, California
Dr. Westerhout's primary practice is Orange County Plastic Surgery Center, LLC, at 4968 Booth Cir, Irvine, CA 92604 in Orange County. The practice phone is (949) 701-4454.
- Orange County Plastic Surgery Center, LLC4968 Booth Cir, Irvine, CA 92604 · Orange CountyPhone(949) 701-4454
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen Alexander Westerhout is affiliated with 1 site of care and 1 medical group
Dr. Westerhout's primary practice is Orange County Plastic Surgery Center, LLC in Irvine, California. The medical group on file is Allied Anesthesia Medical Group.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stephen Alexander Westerhout's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Westerhout practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Orange County Plastic Surgery Center, LLC | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen Alexander Westerhout is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Westerhout's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Westerhout is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Westerhout's licenses on file in 3 states: California, Oregon and Hawaii.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- Oregon license
- Hawaii license
Anesthesiologists near Dr. Westerhout
Counts of anesthesiologists 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
Dr. Stephen Alexander Westerhout billed Medicare for 16 services in 2019
CMS data shows 16 Medicare services from Dr. Westerhout across 1 procedure code in 2019. Medicare paid $2,449 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Westerhout's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Anesthesia
- 2018: 642019: 1675%
Dr. Westerhout compared with the California median for anesthesiologists, 2019
- Dr. Westerhout
- California median
- Medicare services
- 16vs 7278% below
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Westerhout's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Westerhout and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen Alexander Westerhout's patients have a median age of 52
Across all payers, Dmand AI patient panel data puts Dr. Westerhout's median patient age at 52, with 50% women.
Dr. Westerhout's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
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Dr. Stephen Alexander Westerhout received $297 in industry payments from 2016 to 2025
CMS Open Payments shows 8 general payments to Dr. Westerhout from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Vyaire Medical, Inc. paid the most, $120.
General payments to Dr. Westerhout by program year, 2016 to 2025
Companies that paid Dr. Westerhout the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen Alexander Westerhout graduated from Loma Linda University School Of Medicine
Dr. Westerhout graduated from Loma Linda University School Of Medicine in 1998.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen Alexander Westerhout'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Dr. Stephen Alexander Westerhout
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Stephen Alexander Westerhout's NPI number?
Dr. Stephen Alexander Westerhout's NPI number is 1679513279. It was assigned on June 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen Alexander Westerhout?
Dr. Stephen Alexander Westerhout is an anesthesiologist in Irvine, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Stephen Alexander Westerhout practice?
Dr. Westerhout practices at 4968 Booth Cir, Irvine, CA 92604. Dr. Westerhout's primary practice is Orange County Plastic Surgery Center, LLC in Irvine, California.
What is Dr. Stephen Alexander Westerhout's office phone number?
The practice phone on file for Dr. Westerhout is (949) 701-4454.
What is Dr. Stephen Alexander Westerhout's medical license number?
Dr. Westerhout holds California license A76842, one of the licenses on file in 3 states.
Which states has Dr. Stephen Alexander Westerhout been licensed in?
Dmand AI has state licenses on file for Dr. Westerhout in California (2001 to 2027), Oregon (since 2000) and Hawaii (1998 to 1999).
What medical group is Dr. Stephen Alexander Westerhout part of?
Dr. Westerhout is linked to Allied Anesthesia Medical Group.
Does Dr. Stephen Alexander Westerhout accept Medicare?
Yes. CMS data shows Dr. Westerhout billed Medicare for 16 services in 2019.
Is Dr. Stephen Alexander Westerhout board certified?
Yes. Dr. Westerhout is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Stephen Alexander Westerhout bill to Medicare?
In 2019, Dr. Westerhout's most billed Medicare services were anesthesia (00813).
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Where did Dr. Stephen Alexander Westerhout go to medical school?
Dr. Westerhout graduated from Loma Linda University School Of Medicine in 1998.
Has Dr. Stephen Alexander Westerhout received payments from drug or device companies?
CMS Open Payments shows $297 in general payments to Dr. Westerhout from 7 companies from 2016 to 2025. The largest total came from Vyaire Medical, Inc.
How long has Dr. Stephen Alexander Westerhout been practicing?
Dr. Westerhout graduated from medical school in 1998, 28 years ago.
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