John Gaetano, M.D.
NPI 1588977722 · Gastroenterology Physician · Grayslake, IL
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Gaetano, M.D. is a Gastroenterology Physician provider in Grayslake, IL (NPI 1588977722).
Provider details
- NPI number
- 1588977722
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036.132327 (IL)
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 tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
826 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) |
|---|---|---|
| Measurement of Liver Stiffness91200 | 138 | $32 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 119 | $136 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 98 | $176 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 97 | $267 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 50 | $137 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 319 | 105 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 264 | 256 |
| Pantoprazole Sodium | 137 | 49 |
| Ursodiol | 89 | 22 |
| Famotidine | 77 | 37 |
| Colestipol Hcl | 61 | 24 |
| Spironolactone | 50 | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19 across 1 record (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 (1)
- 800 N Westmoreland Rd Ste 102Lake Forest, IL 60045-1687Phone: (847) 535-6083Fax: (847) 582-2198
Registry dates
- Enumerated
- 2010-07-16
- Last updated
- 2021-09-10
- Certified
- 2021-09-10
Frequently asked questions
- What is John Gaetano's NPI number?
- John Gaetano's National Provider Identifier (NPI) is 1588977722, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Gaetano's specialty?
- John Gaetano is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John Gaetano located?
- John Gaetano's practice location on file with NPPES is 1475 E Belvidere Rd, Grayslake, IL 60030-2012.
- What is John Gaetano's phone number?
- The practice phone number listed in the NPPES registry for John Gaetano is (847) 295-1300.
- Does John Gaetano accept Medicare?
- John Gaetano is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Gaetano's NPI active?
- Yes — John Gaetano's NPI (1588977722) is active in the NPPES registry as of the last update on 2021-09-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.