Mark Birns, M.D.
NPI 1982692828 · Gastroenterology Physician · Rockville, MD
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Birns, M.D. is a Gastroenterology Physician provider in Rockville, MD (NPI 1982692828).
Provider details
- NPI number
- 1982692828
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0024994 (MD)
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
20 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
1,049 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) |
|---|---|---|
| Stool Analysis for Blood, By Fecal Hemoglobin Determination By Immunoassay82274 | 261 | $16 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 208 | $71 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 147 | $113 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 116 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 90 | $100 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 659 | 257 |
| Omeprazole | 190 | 69 |
| Pantoprazole Sodium | 170 | 70 |
| Dicyclomine Hcl | 101 | 41 |
| Rabeprazole Sodium | 83 | 28 |
| Esomeprazole Magnesium | 59 | 27 |
| Metoclopramide Hcl | 45 | 18 |
| Linaclotidebrand: Linzess |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$884 across 42 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
- 2005-10-13
- Last updated
- 2013-03-04
Frequently asked questions
- What is Mark Birns's NPI number?
- Mark Birns's National Provider Identifier (NPI) is 1982692828, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Birns's specialty?
- Mark Birns is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Birns located?
- Mark Birns's practice location on file with NPPES is 9711 Medical Center Dr, Rockville, MD 20850-3323.
- What is Mark Birns's phone number?
- The practice phone number listed in the NPPES registry for Mark Birns is (301) 251-0015.
- Does Mark Birns accept Medicare?
- Mark Birns is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Birns's NPI active?
- Yes — Mark Birns's NPI (1982692828) is active in the NPPES registry as of the last update on 2013-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.