Michael Riskalla
NPI 1538628631 · Internal Medicine Physician · Newark, NJ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Riskalla is a Internal Medicine Physician provider in Newark, NJ (NPI 1538628631).
Provider details
- NPI number
- 1538628631
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA12664900 (NJ)
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 tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
847 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 415 | $78 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 203 | $113 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 109 | $134 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 56 | $179 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 47 | $117 |
| Critical Care, First 30-74 Minutes99291 | 17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 18 | 18 |
| Prednisone | 16 | 16 |
| Alendronate Sodium | 15 | — |
| Pantoprazole Sodium | 15 | — |
| Cefpodoxime Proxetil | 14 | 14 |
| Metoprolol Succinate | 13 | 13 |
| Furosemide | 12 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$35 across 1 record (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
Additional practice locations (2)
- 1 General StLawrence, MA 01841-2961Phone: (978) 683-4000
- 55 Fogg RdWeymouth, MA 02190-2432Phone: (781) 624-8000
Registry dates
- Enumerated
- 2019-03-18
- Last updated
- 2026-03-20
- Certified
- 2026-03-20
Frequently asked questions
- What is Michael Riskalla's NPI number?
- Michael Riskalla's National Provider Identifier (NPI) is 1538628631, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Riskalla's specialty?
- Michael Riskalla is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Riskalla located?
- Michael Riskalla's practice location on file with NPPES is 201 Lyons Ave, Newark, NJ 07112-2027.
- What is Michael Riskalla's phone number?
- The practice phone number listed in the NPPES registry for Michael Riskalla is (973) 926-7000.
- Does Michael Riskalla accept Medicare?
- Michael Riskalla is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Riskalla's NPI active?
- Yes — Michael Riskalla's NPI (1538628631) is active in the NPPES registry as of the last update on 2026-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.