NPPES file of Aug 9, 2026

Rebecca S. Boxer, MD

Geriatric Medicine (Internal Medicine) Physician · Sacramento, CA

Rebecca S. Boxer, MD is a geriatric medicine (internal medicine) physician with a practice address in Sacramento, California, and NPI 1659304830, issued on Jul 9, 2006. Check the license (California A68213, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659304830
Name
Rebecca S. Boxer
Credential
MD
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
A68213 CA
Self-reported in NPPES; status is on the state search
Practice location
2315 Stockton Blvd Ste 2P101, Sacramento, CA 95817
Phone
(916) 734-8608
Enumerated
Jul 9, 2006
Record last updated
Jul 27, 2026
Medicare enrollment
Enrolled (PECOS I20230720001476); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 1997
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2315 Stockton Blvd Ste 2P101

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Edgardo AlonsoInternal Medicine Physician1871243923
  2. Adrienne Atencio, MDInternal Medicine Physician1518408798
  3. Maria Louise AvenidoInternal Medicine Physician1275111031
  4. Anthony Bhe, MDInternal Medicine Physician1649439449
  5. Erika Blaikie, M.D.Student in an Organized Health Care Education/Training Program1407387244
  6. Carolina Candotti, MDInternal Medicine Physician1386703130

Verify Rebecca S. Boxer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A68213    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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95% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

199 Medicare Part D claims for 63 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D.

  1. Rebecca Boxer199
  2. Specialty average4,246

Most prescribed

  1. Escitalopram Oxalate23 claims
  2. Donepezil Hcl20 claims
  3. Amlodipine Besylate14 claims
  4. Levothyroxine Sodium13 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.

Bills Medicare through 2 group practices

  1. Regents OF The Univ OF CASacramento, CA
  2. Regents OF The University OF CaliforniaSacramento, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in California

There are 532 geriatric medicine (internal medicine) physician records in California.

All 532 in California → Every provider in Sacramento →

Other geriatric medicine (internal medicine) physician records in California

  1. Adil Abbasi, M.D.La Jolla, CA1548261316
  2. Shashidar Acharya, M.D.Orange, CA1770685521
  3. Marie AdachiLos Angeles, CA1629496740
  4. Pouya Afshar, M.D.San Diego, CA1184958977
  5. Parag Agnihotri, M.D.San Diego, CA1447351085
  6. Andreas Ahlas, M.D.Bakersfield, CA1326200833
  7. Waseem Ahmed, MDSanta Rosa, CA1386803559
  8. Paul AisenSan Diego, CA1669470753
  9. Mahmuda Alam, M.D.Glendale, CA1568659985
  10. Cathy Alessi, M.D.North Hills, CA1134224983

Common questions

What is Rebecca S. Boxer, MD's NPI number?

Rebecca S. Boxer, MD's National Provider Identifier (NPI) is 1659304830, issued on Jul 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Rebecca S. Boxer, MD located?

The NPPES record lists a practice address at 2315 Stockton Blvd Ste 2P101, Sacramento, CA, 95817. Phone: (916) 734-8608. Providers update this record themselves, so call before visiting.

How can I verify Rebecca S. Boxer, MD's license?

NPPES lists California license number A68213, 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 Rebecca S. Boxer, MD prescribe under Medicare Part D?

In 2024, Rebecca S. Boxer, MD had 199 Medicare Part D claims for 63 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.