NPPES file of Aug 9, 2026

William Morris Mitchell, MD

Hospice and Palliative Medicine (Internal Medicine) Physician · San Diego, CA

William Morris Mitchell, MD is a hospice and palliative medicine (internal medicine) physician with a practice address in San Diego, California, and NPI 1669634663, issued on Jun 30, 2008. Check the license (California A92024, 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
1669634663
Name
William Morris Mitchell
Credential
MD
Primary taxonomy
Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
License number
A92024 CA
Self-reported in NPPES; status is on the state search
Practice location
200 W Arbor Dr, San Diego, CA 92103
Phone
(858) 822-6100
Enumerated
Jun 30, 2008
Record last updated
Nov 13, 2025
Fax
(858) 822-6352
Medicare enrollment
Enrolled (PECOS I20090717000566); accepts Medicare assignment
Medical or professional school
University Of Utah School Of Medicine, 2002
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 200 W Arbor Dr

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

  1. Alison A'Court, MDAnesthesiology Physician1912218199
  2. Benjamin Abbadessa, M.D.Colon & Rectal Surgery Physician1255593612
  3. Geraldine Abcede, RNCertified Registered Nurse Anesthetist1982384046
  4. Joseph Abdelmalek, M.DNephrology Physician1740485531
  5. Kristy AbelCertified Registered Nurse Anesthetist1962113035
  6. Paula Abeleda, NPFamily Nurse Practitioner1558945022

Verify William Morris Mitchell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A92024
    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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28% fewer Medicare Part D claims than the average hospice and palliative medicine (internal medicine) physician in 2024

537 Medicare Part D claims for 62 beneficiaries, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims. 73 claims were for opioids.

  1. William Mitchell537
  2. Specialty average741

Most prescribed

  1. Tagrisso46 claims
  2. Prochlorperazine Maleate43 claims
  3. Dexamethasone40 claims
  4. Ondansetron Hcl38 claims
  5. Folic Acid37 claims
  6. Eliquis34 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: $34.70

1 payment: food and beverage; the largest payer was ViiV Healthcare Company. The 338 providers of this specialty with any payment received $547.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Mitchell$34.70
  2. Specialty average$547.94

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

  1. Regents OF The University OF CaliforniaSan Diego, CA

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

William Morris Mitchell among 260 hospice and palliative medicine (internal medicine) physician records in California

William Morris Mitchell, MD is one of 260 hospice and palliative medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 37% of them.

  • NPI issued2008 · 37% of these records are older, 58% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2002 · median 2010 among the 193 with a school on file
  • Record last updated2025 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospice and Palliative Medicine (Internal Medicine) Physician providers in California

There are 260 hospice and palliative medicine (internal medicine) physician records in California.

The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes

  1. Rachel Cohn, M.DSan Diego, CA 921031649476284
  2. Shannon Moore, MD, MPHSan Diego, CA 921031184715732
  3. Michelle Quan, MDSan Diego, CA 921031386272722
  4. Stephanie Schmitt, MDSan Diego, CA 921031992202170
  5. Elaine Yan, MDSan Diego, CA 921031316640493
  6. Holly Yang, MDSan Diego, CA 921031578642658
  7. Kevin Yang, MDSan Diego, CA 921031417489790
  8. Vishar Amin, M.D.San Diego, CA 921081326484577

Common questions

What is William Morris Mitchell, MD's NPI number?

William Morris Mitchell, MD's National Provider Identifier (NPI) is 1669634663, issued on Jun 30, 2008. An NPI identifies a provider in billing; it is not a license.

Where is William Morris Mitchell, MD located?

The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (858) 822-6100. Providers update this record themselves, so call before visiting.

How can I verify William Morris Mitchell, MD's license?

NPPES lists California license number A92024, 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 William Morris Mitchell, MD prescribe under Medicare Part D?

In 2024, William Morris Mitchell, MD had 537 Medicare Part D claims for 62 beneficiaries; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. 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.