Joseph Chapman, DO
NPI 1619369576 · Gastroenterology Physician · Lancaster, PA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Chapman, DO is a Gastroenterology Physician provider in Lancaster, PA (NPI 1619369576).
Provider details
- NPI number
- 1619369576
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- OS021482 (PA)
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
11 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
602 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 | 94 | $236 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 73 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 65 | $85 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 58 | $89 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 39 | $74 |
| Biopsy of Large Bowel Using a Flexible Endoscope |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 194 | 77 |
| Linaclotidebrand: Linzess | 97 | 27 |
| Pantoprazole Sodium | 80 | 25 |
| Dicyclomine Hcl | 54 | 16 |
| Colestipol Hcl | 49 | 13 |
| Famotidine | 41 | 19 |
| Rabeprazole Sodium | 40 | — |
| Metoclopramide Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,378 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
- 2015-03-02
- Last updated
- 2026-02-10
- Certified
- 2026-02-10
Frequently asked questions
- What is Joseph Chapman's NPI number?
- Joseph Chapman's National Provider Identifier (NPI) is 1619369576, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Chapman's specialty?
- Joseph Chapman is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Chapman located?
- Joseph Chapman's practice location on file with NPPES is 555 North Duke Street, Lancaster, PA 17602-2250.
- What is Joseph Chapman's phone number?
- The practice phone number listed in the NPPES registry for Joseph Chapman is (717) 544-5935.
- Does Joseph Chapman accept Medicare?
- Joseph Chapman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Chapman's NPI active?
- Yes — Joseph Chapman's NPI (1619369576) is active in the NPPES registry as of the last update on 2026-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.