John Gleason, MD
NPI 1912990532 · Family Medicine Physician · Sandwich, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Gleason, MD is a Family Medicine Physician provider in Sandwich, IL (NPI 1912990532).
Provider details
- NPI number
- 1912990532
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036081119 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,430 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 419 | $126 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 261 | $129 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 167 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 164 | $89 |
| Blood Test, Clotting Time85610 | 116 | $4 |
| Anticoagulant Management of Patient Taking Warfarin |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 139 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 456 | 110 |
| Atorvastatin Calcium | 427 | 119 |
| Levothyroxine Sodium | 336 | 65 |
| Amlodipine Besylate | 309 | 76 |
| Simvastatin | 277 | 65 |
| Metformin Hcl | 276 | 67 |
| Hydrocodone/Acetaminophen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-30
- Last updated
- 2021-01-26
- Certified
- 2021-01-26
Frequently asked questions
- What is John Gleason's NPI number?
- John Gleason's National Provider Identifier (NPI) is 1912990532, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Gleason's specialty?
- John Gleason is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Gleason located?
- John Gleason's practice location on file with NPPES is 1 E Countyline Rd, Sandwich, IL 60548-2178.
- What is John Gleason's phone number?
- The practice phone number listed in the NPPES registry for John Gleason is (815) 786-2722.
- Does John Gleason accept Medicare?
- John Gleason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Gleason's NPI active?
- Yes — John Gleason's NPI (1912990532) is active in the NPPES registry as of the last update on 2021-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.