Dr. Brian Patrick Hauck, MD

  • Los Angeles, CA
  • Gastroenterologist
NPI1649384751
Medicare services, 2021
110
Part D claims, 2021
27
Industry payments
$103
Insurance carriers
5
State licenses
9
Practice address
5225 W Wilshire Blvd, Los Angeles, CA 90036
Practice phone
Call (310) 633-3310
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Genstar Clinical Inc

Los Angeles, California

Find Dr. Hauck'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.

View contacts for free

Dr. Brian Patrick Hauck is a gastroenterologist in Los Angeles, California

Dr. Hauck practices at Genstar Clinical Inc in Los Angeles, California.

Dr. Hauck's NPI, 1649384751, was assigned on August 18, 2006. Dr. Hauck graduated from University of Alberta in 1984. Dr. Hauck holds California license C50233.

NPI and contact details
NPI enumeration date
August 18, 2006
NPI status
Active
Practice phone
(310) 633-3310
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Medical school graduation
1984

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Brian Patrick Hauck practices at Genstar Clinical Inc in Los Angeles, California

Dr. Hauck's primary practice is Genstar Clinical Inc, at 5225 W Wilshire Blvd, Los Angeles, CA 90036 in Los Angeles County. The practice phone is (310) 633-3310.

  • Genstar Clinical Inc
    5225 W Wilshire Blvd, Los Angeles, CA 90036 · Los Angeles CountyPhone(310) 633-3310

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Brian Patrick Hauck is affiliated with 1 site of care

Dr. Hauck's primary practice is Genstar Clinical Inc in Los Angeles, California.

Genstar Clinical IncLos Angeles, CaliforniaPrimary

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dmand AI tracks the EHR system at Dr. Brian Patrick Hauck's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hauck practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Genstar Clinical IncAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Dr. Hauck practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Brian Patrick Hauck is one of 1,977 gastroenterologists in California

Gastroenterology is Dr. Hauck's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Hauck is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Hauck's licenses on file in 9 states: California, Washington, New Hampshire, Maine, New Mexico, Oregon, Virginia, North Carolina and Ohio.

Specialties and state licenses

  • Gastroenterology, CaliforniaPrimaryLicense C50233 · 1999 to 2027 · taxonomy 207RG0100X
  • Washington license2023 to 2024
  • New Hampshire licenseLicense 21151 · 2021 to 2023
  • Maine licenseLicense MD23620 · 2020 to 2022
  • New Mexico license2018 to 2019
  • Oregon license2015 to 2019
  • Virginia license2001 to 2004
  • North Carolina license1991 to 2002
  • Ohio license1986 to 1994

Gastroenterologists near Dr. Hauck

Counts of gastroenterologists 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. Brian Patrick Hauck billed Medicare for 110 services in 2021

CMS data shows 110 Medicare services from Dr. Hauck across 6 procedure codes in 2021. Medicare paid $12,351 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2021110
Paid by Medicare$12,351
Procedure codes6

Dr. Hauck's Medicare services by type, 2020 to 2021

  • 2020
  • 2021
Surgery
2020: 592021: 637%
Office and hospital visits
2020: 172021: 3288%
Other services
2020: 182021: 1517%

Dr. Hauck compared with the California median for gastroenterologists, 2021

  • Dr. Hauck
  • California median
Medicare services
110vs 58681% below
Part D claims
27vs 38093% below

Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.

Dr. Hauck's most billed Medicare procedure codes, 2021

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Hauck

Need commercial claims for Dr. Hauck?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hauck and other gastroenterologists in California.

Book a meeting

Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Brian Patrick Hauck's patients have a median age of 57

Across all payers, Dmand AI patient panel data puts Dr. Hauck's median patient age at 57, with 4% women.

Dr. Hauck's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 57

Patient panel by sex, all payers

  • Women4%
  • Men96%

Source: Dmand AI Patient Panel Data

Dr. Brian Patrick Hauck wrote 27 Medicare Part D claims in 2021

In 2021, Dr. Hauck wrote 27 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $263 in total drug cost. In 2020, CMS named 56 claims across 2 drugs.

Part D claims, 202127
Drugs named by CMS1
Total drug cost$263

Dr. Hauck's most prescribed drugs by claims, 2021

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2020 to 2021

  • 2020
  • 2021
Claims for drugs CMS names
2020: 562021: 2752%

Drugs named by CMS: 1 in 2021, 2 in 2020.

See all prescribing by Dr. Hauck

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

For MedTech and pharma teams

Find gastroenterologists like Dr. Hauck by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. Brian Patrick Hauck received $103 in industry payments from 2018 to 2019

CMS Open Payments shows 2 general payments to Dr. Hauck from 2 drug and device companies from 2018 to 2019. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $86.

General payments to Dr. Hauck by program year, 2018 to 2019

Companies that paid Dr. Hauck the most, 2018 to 2019

Share is of all general payments to this clinician.

See all payments to Dr. Hauck

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Brian Patrick Hauck graduated from University of Alberta

Dr. Hauck graduated from University of Alberta in 1984. Dr. Hauck is a member of ACP.

  1. Medical schoolUniversity of Alberta
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Brian Patrick Hauck accepts plans from 5 insurance carriers

Dr. Hauck is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans

Plan types Dr. Hauck accepts, by number of carriers

  1. Medicare5
  2. PPO5
  3. HMO2
  4. POS2
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Brian Patrick Hauck's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Brian Patrick Hauck

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. Brian Patrick Hauck's NPI number?

Dr. Brian Patrick Hauck's NPI number is 1649384751. It was assigned on August 18, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Brian Patrick Hauck?

Dr. Brian Patrick Hauck is a gastroenterologist in Los Angeles, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Brian Patrick Hauck practice?

Dr. Hauck practices at 5225 W Wilshire Blvd, Los Angeles, CA 90036. Dr. Hauck's primary practice is Genstar Clinical Inc in Los Angeles, California.

What is Dr. Brian Patrick Hauck's office phone number?

The practice phone on file for Dr. Hauck is (310) 633-3310.

What is Dr. Brian Patrick Hauck's medical license number?

Dr. Hauck holds California license C50233, one of the licenses on file in 9 states.

Which states has Dr. Brian Patrick Hauck been licensed in?

Dmand AI has state licenses on file for Dr. Hauck in California (1999 to 2027), Washington (2023 to 2024), New Hampshire (2021 to 2023), Maine (2020 to 2022), New Mexico (2018 to 2019), Oregon (2015 to 2019), Virginia (2001 to 2004), North Carolina (1991 to 2002) and Ohio (1986 to 1994).

Does Dr. Brian Patrick Hauck accept Medicare?

Yes. CMS data shows Dr. Hauck billed Medicare for 110 services in 2021.

Is Dr. Brian Patrick Hauck board certified?

Yes. Dr. Hauck is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Brian Patrick Hauck bill to Medicare?

In 2021, Dr. Hauck's most billed Medicare services were surgery: digestive system (43239), surgery: digestive system (45380) and surgery: digestive system (45385).

Where did Dr. Brian Patrick Hauck go to medical school?

Dr. Hauck graduated from University of Alberta in 1984.

Show 4 more questionsShow fewer questions

What drugs does Dr. Brian Patrick Hauck prescribe most?

In 2021 Medicare Part D data, Dr. Hauck's most prescribed drugs by claims were Pantoprazole Sodium.

Has Dr. Brian Patrick Hauck received payments from drug or device companies?

CMS Open Payments shows $103 in general payments to Dr. Hauck from 2 companies from 2018 to 2019. The largest total came from Gilead Sciences, Inc.

How long has Dr. Brian Patrick Hauck been practicing?

Dr. Hauck graduated from medical school in 1984, 42 years ago.

What insurance does Dr. Brian Patrick Hauck accept?

Dr. Hauck is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

Selling to gastroenterology practices?

See gastroenterologists in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)