Elizabeth M. Arias, MD
Hospitalist Physician · Palo Alto, CA
Elizabeth M. Arias, MD is a hospitalist physician with a practice address in Palo Alto, California, and NPI 1104836535, issued on Aug 8, 2006. Check the license (California C55357, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Elizabeth M. Arias
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- C55357 CA
MD00045290 WA
Self-reported in NPPES; status is on the state search - Practice location
- 795 EL Camino Real, Palo Alto, CA 94301
- Phone
- (650) 321-4121
- Enumerated
- Aug 8, 2006
- Record last updated
- Feb 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (650) 853-6052
- Medicaid ID
- 8467573 WA
- Medicare enrollment
- Enrolled (PECOS I20121221000148); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 795 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Elizabeth M. Arias in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C55357Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average hospitalist physician in 2024
163 Medicare Part D claims for 57 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Metoprolol Tartrate14 claims
- Gabapentin11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $21.69
1 payment: food and beverage; the largest payer was Genmab U.S., Inc. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationPalo Alto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elizabeth M. Arias among 3,099 hospitalist physician records in California
Elizabeth M. Arias, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 73% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2003 · median 2010 among the 2,505 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
112 hospitalist physician records list a practice address in Palo Alto
They are 112 of the 7,617 NPPES records with a practice address in Palo Alto, and 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Palo Alto → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Madeleine Blaurock, MDPalo Alto, CA 943011154407674
- Sumitra Chari, MDPalo Alto, CA 943011588680631
- Walter Cheng, MDPalo Alto, CA 943011407920945
- Lawrence Crane, MDPalo Alto, CA 943011730294653
- John Cunniff, MDPalo Alto, CA 943011255446449
- Crystal Evey, M.D.Palo Alto, CA 943011730361122
- Kathleen ForcierPalo Alto, CA 943011306034822
- Juliann Kim, MDPalo Alto, CA 943011437203957
Common questions
What is Elizabeth M. Arias, MD's NPI number?
Elizabeth M. Arias, MD's National Provider Identifier (NPI) is 1104836535, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth M. Arias, MD located?
The NPPES record lists a practice address at 795 EL Camino Real, Palo Alto, CA, 94301. Phone: (650) 321-4121. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth M. Arias, MD's license?
NPPES lists California license number C55357, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Elizabeth M. Arias, MD prescribe under Medicare Part D?
In 2024, Elizabeth M. Arias, MD had 163 Medicare Part D claims for 57 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.