Phillip Ahn, M.D.
NPI 1376527879 · Family Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Phillip Ahn, M.D. is a Family Medicine Physician provider in Chicago, IL (NPI 1376527879).
Provider details
- NPI number
- 1376527879
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036089338 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
386 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 135 | $140 |
| 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 | 109 | $18 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 73 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 23 | $145 |
| Administration of Influenza Virus VaccineG0008 | 18 | $34 |
| Admn Sarscov2 Vacc 1 Dose90480 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 84 | 34 |
| Rosuvastatin Calcium | 54 | 19 |
| Amlodipine Besylate | 53 | 20 |
| Metformin Hcl | 50 | 17 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 49 | 11 |
| Metoprolol Succinate | 46 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$508 across 7 records (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
Registry dates
- Enumerated
- 2005-11-30
- Last updated
- 2016-03-29
Frequently asked questions
- What is Phillip Ahn's NPI number?
- Phillip Ahn's National Provider Identifier (NPI) is 1376527879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Phillip Ahn's specialty?
- Phillip Ahn is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Phillip Ahn located?
- Phillip Ahn's practice location on file with NPPES is 4321 S Pulaski Rd, Chicago, IL 60632-4008.
- What is Phillip Ahn's phone number?
- The practice phone number listed in the NPPES registry for Phillip Ahn is (773) 585-2410.
- Does Phillip Ahn accept Medicare?
- Phillip Ahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Phillip Ahn's NPI active?
- Yes — Phillip Ahn's NPI (1376527879) is active in the NPPES registry as of the last update on 2016-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.