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Dr. Andrzej Jerzy Janecki, MD
NPI1871591263PAC ID3072701820
- Medicare services, 2024
- 250
- Medicare patients, 2024
- 151
- Part D claims, 2024
- 724
- Publications
- 21
- Hospital affiliations
- 1
- Practice address
- 21720 Kingsland Blvd - Suite 101, Katy, TX 77450
- Practice phone
- Call (713) 259-8595
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Memorial Hermann Surgery Center Kingsland - Katy (Kingsland Blvd)
Surgery Center - Medicare-Certified · Katy, Texas
Find Dr. Janecki's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Andrzej Jerzy Janecki is a gastroenterologist in Katy, Texas
Dr. Janecki practices at Memorial Hermann Surgery Center Kingsland - Katy (Kingsland Blvd) in Katy, Texas.
Dr. Janecki's NPI, 1871591263, was assigned on July 11, 2005. Dr. Janecki graduated from University of Medical Science Poznan in 1977. Dr. Janecki holds Texas license K3282.
NPI and contact details
- NPI
- 1871591263NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072701820
- NPI enumeration date
- July 11, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (713) 259-8595
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andrzej Jerzy Janecki practices at Memorial Hermann Surgery Center Kingsland - Katy (Kingsland Blvd) in Katy, Texas
Dr. Janecki's primary practice is Memorial Hermann Surgery Center Kingsland - Katy (Kingsland Blvd), at 21720 Kingsland Blvd - Suite 101, Katy, TX 77450. The practice phone is (713) 259-8595.
- Memorial Hermann Surgery Center Kingsland - Katy (Kingsland Blvd)21720 Kingsland Blvd - Suite 101, Katy, TX 77450Phone(713) 259-8595
Source: Dmand AI Affiliation Data
Dr. Andrzej Jerzy Janecki is affiliated with 4 sites of care and 1 medical group
Dr. Janecki's primary practice is Memorial Hermann Surgery Center Kingsland - Katy (Kingsland Blvd) in Katy, Texas. Dr. Janecki is also affiliated with Memorial Hermann Katy Hospital. The medical group on file is Texas Center for Digestive Health. Dmand AI also links Dr. Janecki to 1 more group practice or clinic and 1 ambulatory surgery center, each named with a free account.
Memorial Hermann Surgery Center Kingsland - Katy (Kingsland Blvd)Primary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Andrzej Jerzy Janecki's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Janecki practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorial Hermann Surgery Center Kingsland - Katy (Kingsland Blvd) | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andrzej Jerzy Janecki is one of 1,341 gastroenterologists in Texas
Gastroenterology is Dr. Janecki's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Janecki is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Janecki's licenses on file in 2 states: Texas and Maryland.
Specialties and state licenses
- Gastroenterology, TexasPrimary
- Maryland license
Clinical focus
Dmand AI lists acid reflux, chronic inflammatory bowel disease (IBD), cirrhosis of the liver, colonoscopy, fatty liver, gastroenteritis, hemorrhoids and intestinal diverticulosis among the conditions Dr. Janecki treats.
Gastroenterologists near Dr. Janecki
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Andrzej Jerzy Janecki billed Medicare for 250 services in 2024
CMS data shows 250 Medicare services from Dr. Janecki across 4 procedure codes in 2024, for 151 Medicare patients. Medicare paid $20,897 for them.
Medicare services, 2024250
Medicare patients151
Paid by Medicare$20,897
Procedure codes4
Dr. Janecki's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2952024: 18936%
- Surgery
- 2023: 1092024: 6144%
Where Dr. Janecki's Medicare services took place, 2024
- In an office18976%
- In a facility6124%
Dr. Janecki compared with the Texas median for gastroenterologists, 2024
- Dr. Janecki
- Texas median
- Medicare services
- 250vs 50550% below
- Medicare patients
- 151vs 28447% below
- Part D claims
- 627vs 49327% above
Medians across 1,281 gastroenterologists in Texas with Dmand AI profiles that report each measure.
Dr. Janecki's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Janecki?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Janecki and other gastroenterologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Andrzej Jerzy Janecki treated 151 Medicare patients in 2024, average age 73
CMS counts 151 Medicare patients who saw Dr. Janecki in 2024. The largest group is 65 to 74, with 84 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Janecki's median patient age at 57, with 47% women.
Medicare patients, 2024151
Average age73
Average risk score1.15
Dr. Janecki's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Janecki's Medicare patients by sex, 2024
- Women8254%
- Men6946%
Chronic conditions among Dr. Janecki's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Ischemic heart disease46%
- Diabetes30%
- Anxiety28%
- Chronic kidney disease25%
- Mood disorders24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Janecki's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Andrzej Jerzy Janecki wrote 724 Medicare Part D claims in 2024
In 2024, Dr. Janecki wrote 724 Medicare Part D claims for 170 patients. 88% of them were for generic drugs. CMS names the drug for 627 of them, across 14 drugs with 11 or more claims each, at $350,563 in total drug cost. In 2023, CMS named 712 claims across 14 drugs.
Part D claims, 2024724
Drugs named by CMS14
Total drug cost$350,563
Part D patients170
Dr. Janecki's Part D claims by kind of drug, 2024
- Generic638 claims88%
- Brand-name86 claims12%
Dr. Janecki's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Janecki's Part D claims, 2024
- Antibiotics2%11 of 724 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7122024: 62712%
Drugs named by CMS: 14 in 2024, 14 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Andrzej Jerzy Janecki ranks in the 58th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Janecki accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 35 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Janecki, more than 58% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Janecki ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 58th percentile35 procedures
- Colonoscopy
- 45th percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Andrzej Jerzy Janecki has 21 publications on record
Dmand AI links 21 papers to Dr. Janecki. The most frequent topics are Sertoli Cells, Cells, Cultured and Transferrin.
Papers21
Topics Dr. Janecki writes about most
- Sertoli Cells
- Cells, Cultured
- Transferrin
- Androgen-Binding Protein
- Rats, Inbred Strains
- Aging
- Testosterone
- Cell Membrane Permeability
Recent publications by Dr. Janecki
Androgen-Binding ProteinCell CompartmentationCells, Cultured
See who Dr. Janecki researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Janecki works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Andrzej Jerzy Janecki received $4,189 in industry payments from 2016 to 2025
CMS Open Payments shows 253 general payments to Dr. Janecki from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $1,484.
General payments to Dr. Janecki by program year, 2016 to 2025
Companies that paid Dr. Janecki the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Andrzej Jerzy Janecki graduated from University of Medical Science Poznan
Dr. Janecki graduated from University of Medical Science Poznan in 1977.
- Medical school
- Board certified in gastroenterology
Source: Dmand AI Professional Profile Data
Dr. Andrzej Jerzy Janecki accepts plans from 17 insurance carriers
Dr. Janecki is in network with 17 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Humana
- Blue Cross Blue Shield of Massachusetts
- +9 more carriersWith a free account
Plan types Dr. Janecki accepts, by number of carriers
- PPO12
- Medicare10
- HMO8
- POS6
- EPO5
Source: Dmand AI Insurance Network Data
Sources for Dr. Andrzej Jerzy Janecki's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Andrzej Jerzy Janecki
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Andrzej Jerzy Janecki's NPI number?
Dr. Andrzej Jerzy Janecki's NPI number is 1871591263. It was assigned on July 11, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Andrzej Jerzy Janecki?
Dr. Andrzej Jerzy Janecki is a gastroenterologist in Katy, Texas. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Andrzej Jerzy Janecki practice?
Dr. Janecki practices at 21720 Kingsland Blvd - Suite 101, Katy, TX 77450. Dr. Janecki's primary practice is Memorial Hermann Surgery Center Kingsland - Katy (Kingsland Blvd) in Katy, Texas. Dmand AI also links Dr. Janecki to 1 group practice or clinic and 1 ambulatory surgery center.
What is Dr. Andrzej Jerzy Janecki's office phone number?
The practice phone on file for Dr. Janecki is (713) 259-8595.
What is Dr. Andrzej Jerzy Janecki's medical license number?
Dr. Janecki holds Texas license K3282, one of the licenses on file in 2 states.
Which states has Dr. Andrzej Jerzy Janecki been licensed in?
Dmand AI has state licenses on file for Dr. Janecki in Texas (1999 to 2026) and Maryland (1995 to 2000).
Which hospitals is Dr. Andrzej Jerzy Janecki affiliated with?
Dr. Janecki is affiliated with Memorial Hermann Katy Hospital.
What medical group is Dr. Andrzej Jerzy Janecki part of?
Dr. Janecki is linked to Texas Center for Digestive Health.
Does Dr. Andrzej Jerzy Janecki accept Medicare?
Yes. CMS data shows Dr. Janecki billed Medicare for 250 services in 2024, and Dr. Janecki accepts Medicare assignment.
How many Medicare patients does Dr. Andrzej Jerzy Janecki see?
CMS counts 151 Medicare patients who saw Dr. Janecki in 2024, with an average age of 73.
Show 8 more questionsShow fewer questions
Is Dr. Andrzej Jerzy Janecki board certified?
Yes. Dr. Janecki is board certified in gastroenterology by the American Board of Internal Medicine.
What services does Dr. Andrzej Jerzy Janecki bill to Medicare?
In 2024, Dr. Janecki's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and surgery: digestive system (43239).
Where did Dr. Andrzej Jerzy Janecki go to medical school?
Dr. Janecki graduated from University of Medical Science Poznan in 1977.
What drugs does Dr. Andrzej Jerzy Janecki prescribe most?
In 2024 Medicare Part D data, Dr. Janecki's most prescribed drugs by claims were Omeprazole, Famotidine and Pantoprazole Sodium.
Has Dr. Andrzej Jerzy Janecki received payments from drug or device companies?
CMS Open Payments shows $4,189 in general payments to Dr. Janecki from 26 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Andrzej Jerzy Janecki been practicing?
Dr. Janecki graduated from medical school in 1977, 49 years ago.
Does Dr. Andrzej Jerzy Janecki do research?
Dmand AI links 21 publications to Dr. Janecki.
What insurance does Dr. Andrzej Jerzy Janecki accept?
Dr. Janecki is in network with 17 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
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