Thomas William Rauser

  • Upland, CA
  • Emergency medicine physician
NPI1285384974PAC ID2961935507
Part D claims, 2024
128
Hospital affiliations
3
Medical groups
4
State license
1
Year NPI issued
2022
Practice address
999 San Bernardino Road, Upland, CA 91786
Practice phone
Call (909) 985-2811
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

San Antonio Regional Hospital

Hospital · Upland, California

See all 7 affiliations

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Thomas William Rauser is an emergency medicine physician in Upland, California

Thomas Rauser practices at San Antonio Regional Hospital in Upland, California, part of San Antonio Regional Hospital.

Thomas Rauser's NPI, 1285384974, was assigned on March 25, 2022. Thomas Rauser graduated from Loma Linda University School of Medicine in 2022. Thomas Rauser holds California license A189154.

NPI and contact details
Medicare PAC ID
2961935507
NPI enumeration date
March 25, 2022
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(909) 985-2811
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
30
Medical school graduation
2022

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Thomas William Rauser practices at San Antonio Regional Hospital in Upland, California

Thomas Rauser's primary practice is San Antonio Regional Hospital, at 999 San Bernardino Road, Upland, CA 91786 in San Bernardino County. The practice phone is (909) 985-2811.

Source: Dmand AI Affiliation Data

Thomas William Rauser is affiliated with 3 sites of care and 4 medical groups

Thomas Rauser's primary practice is San Antonio Regional Hospital in Upland, California, part of San Antonio Regional Hospital. Thomas Rauser is also affiliated with Loma Linda University Medical Center. The medical group on file is Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI also links Thomas Rauser to 1 more hospital and 3 medical groups, each named with a free account.

See all 7 affiliations for Thomas Rauser

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Thomas William Rauser's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Thomas Rauser practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
San Antonio Regional HospitalAvailable with a free account
+2 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Thomas William Rauser is one of 7,423 emergency medicine physicians in California

Emergency medicine is Thomas Rauser's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Thomas Rauser is licensed in California.

Specialties and state licenses

  • Emergency medicine, CaliforniaPrimaryLicense A189154 · taxonomy 207P00000X

Emergency medicine physicians near Thomas Rauser

Counts of emergency medicine physicians 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

Thomas William Rauser's patients have a median age of 50

Across all payers, Dmand AI patient panel data puts Thomas Rauser's median patient age at 50, with 55% women.

Thomas Rauser's patients across all payers

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

Patient panel by age, all payers

Median age 50

Patient panel by sex, all payers

  • Women55%
  • Men44%

Source: Dmand AI Patient Panel Data

Thomas William Rauser wrote 128 Medicare Part D claims in 2024

In 2024, Thomas Rauser wrote 128 Medicare Part D claims for 94 patients. 98% of them were for generic drugs. CMS names the drug for 46 of them, across 3 drugs with 11 or more claims each, at $199 in total drug cost.

Part D claims, 2024128
Drugs named by CMS3
Total drug cost$199
Part D patients94

Thomas Rauser's Part D claims by kind of drug, 2024

  • Generic126 claims98%
  • Brand-name and other2 claims2%

Thomas Rauser's most prescribed drugs by claims, 2024

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

Drug classes CMS tracks in Thomas Rauser's Part D claims, 2024

  • Antibiotics37%47 of 128 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Thomas Rauser

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

How Thomas William Rauser takes part in Medicare

Thomas Rauser accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Thomas William Rauser graduated from Loma Linda University School of Medicine

Thomas Rauser graduated from Loma Linda University School of Medicine in 2022.

  1. Medical schoolLoma Linda University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Thomas William Rauser'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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 Thomas William Rauser

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Thomas William Rauser's NPI number?

Thomas William Rauser's NPI number is 1285384974. It was assigned on March 25, 2022, and it is active in the NPI Registry.

What does Thomas William Rauser specialize in?

Thomas William Rauser is an emergency medicine physician in Upland, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Thomas William Rauser practice?

Thomas Rauser practices at 999 San Bernardino Road, Upland, CA 91786. Thomas Rauser's primary practice is San Antonio Regional Hospital in Upland, California, part of San Antonio Regional Hospital. Dmand AI also links Thomas Rauser to 1 hospital and 3 medical groups.

What is Thomas William Rauser's office phone number?

The practice phone on file for Thomas Rauser is (909) 985-2811.

What is Thomas William Rauser's medical license number?

Thomas Rauser holds California license A189154.

Which hospitals is Thomas William Rauser affiliated with?

Thomas Rauser practices at San Antonio Regional Hospital in Upland, California. Thomas Rauser is also affiliated with Loma Linda University Medical Center. Dmand AI links Thomas Rauser to 1 more hospital.

What medical group is Thomas William Rauser part of?

Thomas Rauser is linked to Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI links Thomas Rauser to 3 more medical groups.

Does Thomas William Rauser accept Medicare?

Yes. CMS lists Thomas Rauser as accepting Medicare assignment.

Where did Thomas William Rauser go to medical school?

Thomas Rauser graduated from Loma Linda University School of Medicine in 2022.

What drugs does Thomas William Rauser prescribe most?

In 2024 Medicare Part D data, Thomas Rauser's most prescribed drugs by claims were Cephalexin, Naproxen and Ondansetron ODT.

How long has Thomas William Rauser been practicing?

Thomas Rauser graduated from medical school in 2022, 4 years ago.

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