Phillip Zaret, M.D.
NPI 1851387120 · Surgery Physician · Libertyville, IL
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Phillip Zaret, M.D. is a Surgery Physician provider in Libertyville, IL (NPI 1851387120).
Provider details
- NPI number
- 1851387120
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036-060541 (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 tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
219 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 52 | $135 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 43 | $177 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 41 | $51 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 25 | $81 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 15 | $173 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 21 | 20 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 15 | 14 |
| Naproxen | 14 | — |
| Omeprazole | 14 | — |
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 (1)
- 801 S Milwaukee AveLibertyville, IL 60048-3204Phone: (773) 564-5227Fax: (888) 621-5941
Registry dates
- Enumerated
- 2005-09-22
- Last updated
- 2022-06-15
- Certified
- 2022-06-15
Frequently asked questions
- What is Phillip Zaret's NPI number?
- Phillip Zaret's National Provider Identifier (NPI) is 1851387120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Phillip Zaret's specialty?
- Phillip Zaret is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Phillip Zaret located?
- Phillip Zaret's practice location on file with NPPES is 114 W Rockland Rd, Libertyville, IL 60048-2700.
- What is Phillip Zaret's phone number?
- The practice phone number listed in the NPPES registry for Phillip Zaret is (847) 353-8802.
- Does Phillip Zaret accept Medicare?
- Phillip Zaret is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Phillip Zaret's NPI active?
- Yes — Phillip Zaret's NPI (1851387120) is active in the NPPES registry as of the last update on 2022-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.