Alison Sage, D.O.
NPI 1427495241 · Family Medicine Physician · Oak Park, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alison Sage, D.O. is a Family Medicine Physician provider in Oak Park, IL (NPI 1427495241).
Provider details
- NPI number
- 1427495241
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 036139049 (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
13 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
332 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 | 123 | $134 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 89 | $140 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 63 | $97 |
| Administration of Influenza Virus VaccineG0008 | 19 | $34 |
| Hemoglobin A1c Level83036 | 14 | $10 |
| Administration of Pneumococcal VaccineG0009 | 12 | $34 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 184 | 55 |
| Amlodipine Besylate | 151 | 43 |
| Losartan Potassium | 124 | 36 |
| Levothyroxine Sodium | 87 | 22 |
| Rosuvastatin Calcium | 82 | 28 |
| Hydrochlorothiazide | 80 | 24 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-06-03
- Last updated
- 2026-02-09
- Certified
- 2026-02-09
Frequently asked questions
- What is Alison Sage's NPI number?
- Alison Sage's National Provider Identifier (NPI) is 1427495241, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alison Sage's specialty?
- Alison Sage is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alison Sage located?
- Alison Sage's practice location on file with NPPES is 932 Lake St Ste 300, Oak Park, IL 60301-1204.
- What is Alison Sage's phone number?
- The practice phone number listed in the NPPES registry for Alison Sage is (331) 221-1700.
- Does Alison Sage accept Medicare?
- Alison Sage is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alison Sage's NPI active?
- Yes — Alison Sage's NPI (1427495241) is active in the NPPES registry as of the last update on 2026-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.