Robert Isaak, M.D., PHARM.D.
NPI 1619197464 · Radiation Oncology Physician · Des Moines, IA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Isaak, M.D., PHARM.D. is a Radiation Oncology Physician provider in Des Moines, IA (NPI 1619197464).
Provider details
- NPI number
- 1619197464
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PHARM.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301084303 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
19 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
1,915 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) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 632 | $41 |
| Calculation of Radiation Therapy Dose77300 | 254 | $30 |
| Design and Construction of Complex Radiation Treatment Device77334 | 201 | $56 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 199 | $174 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 182 | $60 |
| Complex Radiation Therapy Planning77263 | 80 | $153 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 31 | 11 |
| Memantine Hcl | 15 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 3245 Channing WayIdaho Falls, ID 83404Phone: (208) 227-2790Fax: (208) 227-2735
Registry dates
- Enumerated
- 2007-04-26
- Last updated
- 2025-07-17
- Certified
- 2025-07-17
Frequently asked questions
- What is Robert Isaak's NPI number?
- Robert Isaak's National Provider Identifier (NPI) is 1619197464, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Isaak's specialty?
- Robert Isaak is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Isaak located?
- Robert Isaak's practice location on file with NPPES is 1221 Pleasant St, Des Moines, IA 50309-1428.
- What is Robert Isaak's phone number?
- The practice phone number listed in the NPPES registry for Robert Isaak is (515) 241-4330.
- Does Robert Isaak accept Medicare?
- Robert Isaak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Isaak's NPI active?
- Yes — Robert Isaak's NPI (1619197464) is active in the NPPES registry as of the last update on 2025-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.