Ari Nahum, M.D.
NPI 1538503719 · Internal Medicine Physician · Saint Paul, MN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ari Nahum, M.D. is a Internal Medicine Physician provider in Saint Paul, MN (NPI 1538503719).
Provider details
- NPI number
- 1538503719
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 60230 (MN)
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
13 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
298 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 | 45 | $84 |
| 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 | 43 | $15 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 41 | $129 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 37 | $163 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 31 | $111 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydromorphone Hcl | 89 | 13 |
| Oxycodone Hcl | 60 | 21 |
| Methadone Hcl | 41 | — |
| Celecoxib | 40 | 12 |
| Buprenorphine | 38 | 14 |
| Tramadol Hcl | 35 | — |
| Olanzapine | 30 | 11 |
| Gabapentin |
Practice location
Mailing address
Additional practice locations (1)
- 420 Delaware St SeMmc 284Minneapolis, MN 55455-0341Phone: (612) 625-5454
Registry dates
- Enumerated
- 2013-04-18
- Last updated
- 2023-06-14
- Certified
- 2023-06-14
Frequently asked questions
- What is Ari Nahum's NPI number?
- Ari Nahum's National Provider Identifier (NPI) is 1538503719, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ari Nahum's specialty?
- Ari Nahum is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ari Nahum located?
- Ari Nahum's practice location on file with NPPES is 640 Jackson St, Saint Paul, MN 55101.
- What is Ari Nahum's phone number?
- The practice phone number listed in the NPPES registry for Ari Nahum is (651) 254-3456.
- Does Ari Nahum accept Medicare?
- Ari Nahum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ari Nahum's NPI active?
- Yes — Ari Nahum's NPI (1538503719) is active in the NPPES registry as of the last update on 2023-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.