Mark Riederman, M.D.
NPI 1699782151 · Internal Medicine Physician · Libertyville, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Riederman, M.D. is a Internal Medicine Physician provider in Libertyville, IL (NPI 1699782151).
Provider details
- NPI number
- 1699782151
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036063570 (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
19 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
3,023 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 597 | $88 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 580 | $124 |
| 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 | 438 | $16 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 349 | $121 |
| Urinalysis, Manual Test81002 | 348 | $3 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 85 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 856 | 246 |
| Amlodipine Besylate | 480 | 133 |
| Hydrochlorothiazide | 289 | 81 |
| Levothyroxine Sodium | 285 | 77 |
| Metformin Hcl | 277 | 77 |
| Valsartan | 233 | 67 |
| Simvastatin | 227 | 62 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,968 across 89 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
- 2006-08-01
- Last updated
- 2012-10-24
Frequently asked questions
- What is Mark Riederman's NPI number?
- Mark Riederman's National Provider Identifier (NPI) is 1699782151, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Riederman's specialty?
- Mark Riederman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Riederman located?
- Mark Riederman's practice location on file with NPPES is 1800 Hollister Dr, Libertyville, IL 60048-5266.
- What is Mark Riederman's phone number?
- The practice phone number listed in the NPPES registry for Mark Riederman is (847) 816-3084.
- Does Mark Riederman accept Medicare?
- Mark Riederman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Riederman's NPI active?
- Yes — Mark Riederman's NPI (1699782151) is active in the NPPES registry as of the last update on 2012-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.