Darin Frerichs, D.O.
NPI 1285687111 · Anesthesiology Physician · Des Moines, IA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darin Frerichs, D.O. is a Anesthesiology Physician provider in Des Moines, IA (NPI 1285687111).
Provider details
- NPI number
- 1285687111
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 3699 (IA)
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
20 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
83 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) |
|---|---|---|
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 23 | $40 |
| Anesthesia for Extensive Surgery on Spine00670 | 13 | $271 |
| Injection of Anesthetic Agent And/Or Steroid Into Arm Nerve Bundle (brachial Plexus)64415 | 13 | $64 |
| Anesthesia for Total Hip Replacement01214 | 12 | $155 |
| Anesthesia for Procedure to Assess Heart Electrical Activity00537 | 11 | $232 |
| Anesthesia for Other Procedure on Upper Abdomen00790 | 11 | $228 |
Typical Medicare-allowed amounts for these services range $40–$271 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$61 across 2 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
Additional practice locations (2)
- 200 Hawkins DrIowa City, IA 52242-1009Phone: (319) 356-2633Fax: (319) 356-2940
- 701 W Forevergreen RdNorth Liberty, IA 52317-9848Phone: (319) 356-2633Fax: (319) 356-2940
Registry dates
- Enumerated
- 2006-05-19
- Last updated
- 2025-10-22
- Certified
- 2025-10-22
Frequently asked questions
- What is Darin Frerichs's NPI number?
- Darin Frerichs's National Provider Identifier (NPI) is 1285687111, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darin Frerichs's specialty?
- Darin Frerichs is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Darin Frerichs located?
- Darin Frerichs's practice location on file with NPPES is 411 Laurel St, Des Moines, IA 50314-3017.
- What is Darin Frerichs's phone number?
- The practice phone number listed in the NPPES registry for Darin Frerichs is (515) 283-0463.
- Does Darin Frerichs accept Medicare?
- Darin Frerichs is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darin Frerichs's NPI active?
- Yes — Darin Frerichs's NPI (1285687111) is active in the NPPES registry as of the last update on 2025-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.