NPPES file of Aug 9, 2026

Samuel William Downing, M.D.

Hospice and Palliative Medicine (Internal Medicine) Physician · Prescott, AZ

Samuel William Downing, M.D. is a hospice and palliative medicine (internal medicine) physician with a practice address in Prescott, Arizona, and NPI 1922137231, issued on Mar 4, 2007. Check the license (Arizona 16298, as entered in NPPES) on the Arizona Medical Board; 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
1922137231
Name
Samuel William Downing
Credential
M.D.
Primary taxonomy
Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
License number
16298 AZ
Self-reported in NPPES; status is on the state search
Practice location
1001 Division St, Prescott, AZ 86301
Phone
(928) 775-5567
Enumerated
Mar 4, 2007
Record last updated
Feb 4, 2025
Fax
(928) 772-1522
Medicaid ID
280991 AZ
Medicare enrollment
Enrolled (PECOS I20051129000015); accepts Medicare assignment
Medical or professional school
University Of Colorado School Of Medicine, Denver, 1985
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 1001 Division St

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

  1. Sheila Black, FNP-CFamily Nurse Practitioner1871115832
  2. Brittney Coahran, NPFamily Nurse Practitioner1235819079
  3. Ann CurryPhysician Assistant1700811049
  4. Kevin Doyle, MDHospice and Palliative Medicine (Internal Medicine) Physician1114912961
  5. Richard Lane, M.D.Orthopaedic Surgery Physician1184616823
  6. Eunjin Lee, MDHospice and Palliative Medicine (Internal Medicine) Physician1730678343

Verify Samuel William Downing in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 16298
    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 Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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5.6 times the Medicare Part D claims of the average hospice and palliative medicine (internal medicine) physician in 2024

4,134 Medicare Part D claims for 132 beneficiaries, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 78 claims were for opioids.

  1. Samuel Downing4,134
  2. Specialty average741

Most prescribed

  1. Levothyroxine Sodium361 claims
  2. Lisinopril147 claims
  3. Amlodipine Besylate140 claims
  4. Atorvastatin Calcium139 claims
  5. Furosemide131 claims
  6. Gabapentin129 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: $217.16

3 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. 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. Samuel Downing$217.16
  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. Yavapai Regional Medical Center Physician Care LLCPrescott Valley, AZ

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

Samuel William Downing among 67 hospice and palliative medicine (internal medicine) physician records in Arizona

Samuel William Downing, M.D. is one of 67 hospice and palliative medicine (internal medicine) physician records with a practice address in Arizona. 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 2007, is newer than 27% of them.

  • NPI issued2007 · 27% of these records are older, 69% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1985 · median 2012 among the 48 with a school on file
  • Record last updated2025 · 34% 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 Arizona 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 Arizona

There are 67 hospice and palliative medicine (internal medicine) physician records in Arizona.

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

  1. Kevin Doyle, MDPrescott, AZ 863011114912961
  2. Eunjin Lee, MDPrescott, AZ 863011730678343
  3. Candace Reid, D.O.Prescott, AZ 863011396739066
  4. Cynthia Martin, MDCottonwood, AZ 863261346290962
  5. Kendra Grathwohl, MDFlagstaff, AZ 860011538599568
  6. Katharine Hawbaker, M.D.Flagstaff, AZ 860011508128976
  7. Emmalee Kennedy, M.D.Flagstaff, AZ 860011619940384
  8. Catherine Romano Delange, D.O.Flagstaff, AZ 860011225397896

Common questions

What is Samuel William Downing, M.D.'s NPI number?

Samuel William Downing, M.D.'s National Provider Identifier (NPI) is 1922137231, issued on Mar 4, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Samuel William Downing, M.D. located?

The NPPES record lists a practice address at 1001 Division St, Prescott, AZ, 86301. Phone: (928) 775-5567. Providers update this record themselves, so call before visiting.

How can I verify Samuel William Downing, M.D.'s license?

NPPES lists Arizona license number 16298, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Samuel William Downing, M.D. prescribe under Medicare Part D?

In 2024, Samuel William Downing, M.D. had 4,134 Medicare Part D claims for 132 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.