NPPES file of Aug 9, 2026

Mark Huntington Whiteford, MD

Colon & Rectal Surgery Physician · Portland, OR

Mark Huntington Whiteford, MD is a colon & rectal surgery physician with a practice address in Portland, Oregon, and NPI 1710970892, issued on Aug 24, 2005. Check the license (Oregon MD21976, as entered in NPPES) on the Oregon 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
1710970892
Name
Mark Huntington Whiteford
Credential
MD
Primary taxonomy
Colon & Rectal Surgery Physician 208C00000X
License number
MD21976 OR
Self-reported in NPPES; status is on the state search
Practice location
4805 NE Glisan St, Portland, OR 97213
Phone
(503) 281-0561
Enumerated
Aug 24, 2005
Record last updated
May 13, 2026
Fax
(503) 416-7377
Medicaid IDs
134196 OR
8245078 WA
Medicare enrollment
Enrolled (PECOS I20040419000372); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 1991
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 4805 NE Glisan St

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

  1. Bethany Adams, DNP, AGACNPGerontology Nurse Practitioner1053955047
  2. Elie Adwani, MDStudent in an Organized Health Care Education/Training Program1952262453
  3. Rehan Ahmad, MDColon & Rectal Surgery Physician1750457990
  4. Stephanie Ahmed, MDObstetrics & Gynecology Physician1447269170
  5. Shaghayegh Aliabadi, M.D.Surgery Physician1083785562
  6. Anna Apostolou-Keith, RD, LDNRegistered Dietitian1639838790

Verify Mark Huntington Whiteford in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD21976
    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 Oregon 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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56% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024

84 Medicare Part D claims for 37 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 21 claims were for opioids.

  1. Mark Whiteford84
  2. Specialty average192

Most prescribed

  1. Ciprofloxacin Hcl24 claims
  2. Metronidazole16 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: $290.56

2 payments; by number, the most common kind was travel and lodging; the largest payer was Intuitive Surgical, Inc. The 1,524 providers of this specialty with any payment received $3,468.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Whiteford$290.56
  2. Specialty average$3,468.16

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. The Oregon Clinic, PCPortland, OR

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

Mark Huntington Whiteford among 31 colon & rectal surgery physician records in Oregon

Mark Huntington Whiteford, MD is one of 31 colon & rectal surgery physician records with a practice address in Oregon. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 94% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 87% of these records are
  • Graduated1991 · median 2006 among the 27 with a school on file
  • Record last updated2026 · 35% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Colon & Rectal Surgery Physician providers in Oregon

There are 31 colon & rectal surgery physician records in Oregon.

The 8 colon & rectal surgery physician records with the nearest ZIP codes

  1. Rehan Ahmad, MDPortland, OR 972131750457990
  2. Roy Breen, MDPortland, OR 972131164594248
  3. Leonardo Garcia, M.D.Portland, OR 972131790346393
  4. Amanda Hayman, MD, MPHPortland, OR 972131750603957
  5. David O'Brien, MDPortland, OR 972131669440350
  6. Rodrigo Pedraza Rosales, M.D.Portland, OR 972131659798932
  7. Carey WickhamPortland, OR 972131750820007
  8. Khayree Butler, M.D.Portland, OR 972101649430430

Common questions

What is Mark Huntington Whiteford, MD's NPI number?

Mark Huntington Whiteford, MD's National Provider Identifier (NPI) is 1710970892, issued on Aug 24, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark Huntington Whiteford, MD located?

The NPPES record lists a practice address at 4805 NE Glisan St, Portland, OR, 97213. Phone: (503) 281-0561. Providers update this record themselves, so call before visiting.

How can I verify Mark Huntington Whiteford, MD's license?

NPPES lists Oregon license number MD21976, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Huntington Whiteford, MD prescribe under Medicare Part D?

In 2024, Mark Huntington Whiteford, MD had 84 Medicare Part D claims for 37 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. 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.