Kenneth Oriordan, MD
NPI 1912075649 · Gastroenterology Physician · Niles, IL
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kenneth Oriordan, MD is a Gastroenterology Physician provider in Niles, IL (NPI 1912075649).
Provider details
- NPI number
- 1912075649
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 57870 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
466 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 104 | $77 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 87 | $104 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 79 | $79 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 49 | $132 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 40 | $113 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Ursodiol | 33 |
| Linaclotidebrand: Linzess | 17 |
| Mesalamine | 17 |
| Carvedilol | 15 |
| Tenofovir Disoproxil Fumarate | 13 |
| Pantoprazole Sodium | 13 |
| Omeprazole | 13 |
| Furosemide | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 259 E Erie St Ste 1600Chicago, IL 60611-3111Phone: (312) 695-5620Fax: (312) 695-7095
- 1401 25th St SGreat Falls, MT 59405-5183Phone: (406) 731-8888Fax: (406) 731-8318
Registry dates
- Enumerated
- 2006-12-01
- Last updated
- 2025-10-23
- Certified
- 2025-10-23
Frequently asked questions
- What is Kenneth Oriordan's NPI number?
- Kenneth Oriordan's National Provider Identifier (NPI) is 1912075649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kenneth Oriordan's specialty?
- Kenneth Oriordan is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Kenneth Oriordan located?
- Kenneth Oriordan's practice location on file with NPPES is 7900 Milwaukee Ave, Niles, IL 60714-3159.
- What is Kenneth Oriordan's phone number?
- The practice phone number listed in the NPPES registry for Kenneth Oriordan is (847) 318-9595.
- Does Kenneth Oriordan accept Medicare?
- Kenneth Oriordan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kenneth Oriordan's NPI active?
- Yes — Kenneth Oriordan's NPI (1912075649) is active in the NPPES registry as of the last update on 2025-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.