NPPES file of Aug 9, 2026

Colin Howden, MD

Gastroenterology Physician · Memphis, TN

Colin Howden, MD is a gastroenterology physician with a practice address in Memphis, Tennessee, and NPI 1891721445, issued on Jun 24, 2006. Check the license (Tennessee 51752, as entered in NPPES) on the Tennessee Board of Medical Examiners; 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
1891721445
Name
Colin Howden
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License numbers
51752 TN
036098501 IL
Self-reported in NPPES; status is on the state search
Practice location
877 Jefferson Ave, Memphis, TN 38103
Phone
(901) 545-6969
Enumerated
Jun 24, 2006
Record last updated
May 15, 2018 (not updated in 8 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 877 Jefferson Ave

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

  1. Adil AbdurahamanStudent in an Organized Health Care Education/Training Program1962298299
  2. Aleksander Acred, CRNACertified Registered Nurse Anesthetist1619616984
  3. Muhammad Umer Afzaal, M.D.Diagnostic Radiology Physician1518319458
  4. Muhammad Afzal, M.D.,M.B.B.SDiagnostic Radiology Physician1598988073
  5. Lauren Ahern, CRNACertified Registered Nurse Anesthetist1487189197
  6. Hina Akbar, M.D.Hospitalist Physician1871909671

Verify Colin Howden in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license 51752
    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 Tennessee 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $128,549.34

134 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Colin Howden$128,549
  2. Specialty average$5,016

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Colin Howden among 384 gastroenterology physician records in Tennessee

Colin Howden, MD is one of 384 gastroenterology physician records with a practice address in Tennessee. 79% 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 26% of them.

  • NPI issued2006 · 26% of these records are older, 37% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2018 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Tennessee

There are 384 gastroenterology physician records in Tennessee.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Nazneen Ahmed, M.D.Memphis, TN 381031154355592
  2. Leonard Baidoo, MDMemphis, TN 381031669444642
  3. Kiran JoglekarMemphis, TN 381031093120024
  4. Mansour Parsi, MDMemphis, TN 381031447216692
  5. Claudio Tombazzi, MDMemphis, TN 381031649236811
  6. G Verne, MDMemphis, TN 381031609808062
  7. Uchenna Agbim, MDMemphis, TN 381041649505124
  8. Ali Akbar, MDMemphis, TN 381041740411370

Common questions

What is Colin Howden, MD's NPI number?

Colin Howden, MD's National Provider Identifier (NPI) is 1891721445, issued on Jun 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Colin Howden, MD located?

The NPPES record lists a practice address at 877 Jefferson Ave, Memphis, TN, 38103. Phone: (901) 545-6969. Providers update this record themselves, so call before visiting.

How can I verify Colin Howden, MD's license?

NPPES lists Tennessee license number 51752, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.