Mark Allen, M.D.
NPI 1457465163 · Gastroenterology Physician · Kansas City, MO
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Allen, M.D. is a Gastroenterology Physician provider in Kansas City, MO (NPI 1457465163).
Provider details
- NPI number
- 1457465163
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- R2A11 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,055 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 159 | $240 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 137 | $14 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 123 | $58 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 85 | $136 |
| Colorectal Cancer Screening; Colonoscopy on Individual at High RiskG0105 | 81 | $171 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 396 | 395 |
| Omeprazole | 179 | 64 |
| Pantoprazole Sodium | 104 | 34 |
| Famotidine | 89 | 35 |
| Colestipol Hcl | 50 | 19 |
| Diphenoxylate Hcl/Atropinebrand: Diphenoxylate-Atropine | 46 | — |
| Upadacitinibbrand: Rinvoq | 31 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,465 across 74 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-18
- Last updated
- 2015-11-02
Frequently asked questions
- What is Mark Allen's NPI number?
- Mark Allen's National Provider Identifier (NPI) is 1457465163, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Allen's specialty?
- Mark Allen is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Allen located?
- Mark Allen's practice location on file with NPPES is 4321 Washington St, Kansas City, MO 64111-5961.
- What is Mark Allen's phone number?
- The practice phone number listed in the NPPES registry for Mark Allen is (816) 561-2000.
- Does Mark Allen accept Medicare?
- Mark Allen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Allen's NPI active?
- Yes — Mark Allen's NPI (1457465163) is active in the NPPES registry as of the last update on 2015-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.