Ariel Katz, M.D.
NPI 1245261684 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ariel Katz, M.D. is a Internal Medicine Physician provider in Chicago, IL (NPI 1245261684).
Provider details
- NPI number
- 1245261684
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-114147 (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
19 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
454 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 | 87 | $129 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 64 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $93 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 58 | $80 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 40 | $115 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 153 | 54 |
| Gabapentin | 75 | 20 |
| Amlodipine Besylate | 69 | 24 |
| Tamsulosin Hcl | 63 | 21 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 58 | 17 |
| Furosemide | 56 | 17 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-05
- Last updated
- 2025-01-29
- Certified
- 2025-01-29
Frequently asked questions
- What is Ariel Katz's NPI number?
- Ariel Katz's National Provider Identifier (NPI) is 1245261684, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ariel Katz's specialty?
- Ariel Katz is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ariel Katz located?
- Ariel Katz's practice location on file with NPPES is 3134 N Clark St, Chicago, IL 60657-4414.
- What is Ariel Katz's phone number?
- The practice phone number listed in the NPPES registry for Ariel Katz is (312) 296-5090.
- Does Ariel Katz accept Medicare?
- Ariel Katz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ariel Katz's NPI active?
- Yes — Ariel Katz's NPI (1245261684) is active in the NPPES registry as of the last update on 2025-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.