Andrzej Janecki, M.D.
NPI 1871591263 · Gastroenterology Physician · Katy, TX
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrzej Janecki, M.D. is a Gastroenterology Physician provider in Katy, TX (NPI 1871591263).
Provider details
- NPI number
- 1871591263
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- K3282 (TX)
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
250 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 | 96 | $126 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 93 | $89 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 34 | $103 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 27 | $196 |
Typical Medicare-allowed amounts for these services range $89–$196 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 167 | 65 |
| Famotidine | 131 | 53 |
| Pantoprazole Sodium | 87 | 37 |
| Mesalamine | 56 | 14 |
| Amitriptyline Hcl | 31 | 11 |
| Dicyclomine Hcl | 30 | 11 |
| Budesonidebrand: Budesonide Dr | 26 | — |
| Adalimumab |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$325 across 20 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
- 2005-07-11
- Last updated
- 2007-11-09
Frequently asked questions
- What is Andrzej Janecki's NPI number?
- Andrzej Janecki's National Provider Identifier (NPI) is 1871591263, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrzej Janecki's specialty?
- Andrzej Janecki is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Andrzej Janecki located?
- Andrzej Janecki's practice location on file with NPPES is 1331 W Grand Parkway N, Katy, TX 77493-2711.
- What is Andrzej Janecki's phone number?
- The practice phone number listed in the NPPES registry for Andrzej Janecki is (281) 395-8688.
- Does Andrzej Janecki accept Medicare?
- Andrzej Janecki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrzej Janecki's NPI active?
- Yes — Andrzej Janecki's NPI (1871591263) is active in the NPPES registry as of the last update on 2007-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.