Sean Karp, MD
NPI 1326175837 · Gastroenterology Physician · Laurel, MD
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean Karp, MD is a Gastroenterology Physician provider in Laurel, MD (NPI 1326175837).
Provider details
- NPI number
- 1326175837
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD33688 (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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
748 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 272 | $138 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 132 | $181 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 96 | $132 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 92 | $103 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 84 | $99 |
| 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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 201 | 70 |
| Pantoprazole Sodium | 190 | 58 |
| Dicyclomine Hcl | 96 | 39 |
| Lansoprazole | 65 | 16 |
| Linaclotidebrand: Linzess | 64 | 19 |
| Omeprazole | 52 | 17 |
| Hydrocortisone | 39 | 26 |
| Ondansetron |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,398 across 64 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
Additional practice locations (2)
- 6230 Old Dobbin Ln Ste 150Columbia, MD 21045-5809Phone: (410) 730-9363Fax: (410) 730-2084
- 7350 Van Dusen Rd Ste 410Laurel, MD 20707-5265Phone: (301) 498-5500
Registry dates
- Enumerated
- 2007-02-28
- Last updated
- 2026-01-06
- Certified
- 2026-01-06
Frequently asked questions
- What is Sean Karp's NPI number?
- Sean Karp's National Provider Identifier (NPI) is 1326175837, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Karp's specialty?
- Sean Karp is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Sean Karp located?
- Sean Karp's practice location on file with NPPES is 7350 Van Dusen Rd, Laurel, MD 20707-5263.
- What is Sean Karp's phone number?
- The practice phone number listed in the NPPES registry for Sean Karp is (301) 498-5500.
- Does Sean Karp accept Medicare?
- Sean Karp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean Karp's NPI active?
- Yes — Sean Karp's NPI (1326175837) is active in the NPPES registry as of the last update on 2026-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.