Dr. Darin Lee Frerichs, DO
- Medicare services, 2024
- 83
- Medicare patients, 2024
- 218
- MIPS score, 2024
- 67
- Hospital affiliations
- 3
- Industry payments
- $381
- Practice address
- 450 Laurel St, Des Moines, IA 50314
- Practice phone
- Call (515) 323-6400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercyone River Hills Surgery Center
Des Moines, Iowa
Find Dr. Frerichs' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Darin Lee Frerichs is an anesthesiologist in Des Moines, Iowa
Dr. Frerichs practices at Mercyone River Hills Surgery Center in Des Moines, Iowa.
Dr. Frerichs' NPI, 1285687111, was assigned on May 19, 2006. Dr. Frerichs holds Iowa license 3699.
- NPI
- 1285687111NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305850603
- NPI enumeration date
- May 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (515) 323-6400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Darin Lee Frerichs practices at Mercyone River Hills Surgery Center in Des Moines, Iowa
Dr. Frerichs' primary practice is Mercyone River Hills Surgery Center, at 450 Laurel St, Des Moines, IA 50314 in Polk County. The practice phone is (515) 323-6400.
- Mercyone River Hills Surgery Center450 Laurel St, Des Moines, IA 50314 · Polk CountyPhone(515) 323-6400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Darin Lee Frerichs is affiliated with 7 sites of care and 5 medical groups
Dr. Frerichs' primary practice is Mercyone River Hills Surgery Center in Des Moines, Iowa. Dr. Frerichs is also affiliated with MercyOne Des Moines Medical Center. The medical group on file is Medical Center Anesthesiologists. Dmand AI also links Dr. Frerichs to 2 more hospitals, 4 medical groups and 3 group practices and clinics, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Darin Lee Frerichs' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Frerichs practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercyone River Hills Surgery Center | Available with a free account |
| +6 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Darin Lee Frerichs is one of 381 anesthesiologists in Iowa
Anesthesiology is Dr. Frerichs' primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Frerichs is licensed in Iowa.
Specialties and state licenses
- Anesthesiology, IowaPrimary
Anesthesiologists near Dr. Frerichs
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Darin Lee Frerichs billed Medicare for 83 services in 2024
CMS data shows 83 Medicare services from Dr. Frerichs across 6 procedure codes in 2024, for 218 Medicare patients. Medicare paid $9,711 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Frerichs' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 902024: 4748%
- Surgery
- 2023: 422024: 3614%
Dr. Frerichs compared with the Iowa median for anesthesiologists, 2024
- Dr. Frerichs
- Iowa median
- Medicare services
- 83vs 7117% above
- Medicare patients
- 218vs 16532% above
Medians across 373 anesthesiologists in Iowa with Dmand AI profiles that report each measure.
Dr. Frerichs' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Darin Lee Frerichs treated 218 Medicare patients in 2024, average age 73
CMS counts 218 Medicare patients who saw Dr. Frerichs in 2024. The largest group is 65 to 74, with 113 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.33, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Frerichs' median patient age at 67, with 54% women.
Dr. Frerichs' Medicare patients by age, 2024
Dr. Frerichs' Medicare patients by sex, 2024
- Women11352%
- Men10548%
Chronic conditions among Dr. Frerichs' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease39%
- Chronic kidney disease34%
- Mood disorders33%
- Depression32%
- Atrial fibrillation31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Frerichs' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Darin Lee Frerichs scored 67 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 67 out of 100 for Dr. Frerichs for performance year 2024, reported as part of a group. Dr. Frerichs accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Frerichs' MIPS scores, performance year 2024
- 67of 100Final score
- 60of 100Quality
- 40of 100Improvement Activities
- 64of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Darin Lee Frerichs received $381 in industry payments from 2016 to 2024
CMS Open Payments shows 13 general payments to Dr. Frerichs from 8 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. CONMED Corporation paid the most, $111.
General payments to Dr. Frerichs by program year, 2016 to 2024
Companies that paid Dr. Frerichs the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Darin Lee Frerichs's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Darin Lee Frerichs
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Darin Lee Frerichs' NPI number?
Dr. Darin Lee Frerichs' NPI number is 1285687111. It was assigned on May 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Darin Lee Frerichs?
Dr. Darin Lee Frerichs is an anesthesiologist in Des Moines, Iowa. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Darin Lee Frerichs practice?
Dr. Frerichs practices at 450 Laurel St, Des Moines, IA 50314. Dr. Frerichs' primary practice is Mercyone River Hills Surgery Center in Des Moines, Iowa. Dmand AI also links Dr. Frerichs to 2 hospitals, 4 medical groups and 3 group practices and clinics.
What is Dr. Darin Lee Frerichs' office phone number?
The practice phone on file for Dr. Frerichs is (515) 323-6400.
What is Dr. Darin Lee Frerichs' medical license number?
Dr. Frerichs holds Iowa license 3699.
Which hospitals is Dr. Darin Lee Frerichs affiliated with?
Dr. Frerichs is affiliated with MercyOne Des Moines Medical Center. Dmand AI links Dr. Frerichs to 2 more hospitals.
What medical group is Dr. Darin Lee Frerichs part of?
Dr. Frerichs is linked to Medical Center Anesthesiologists. Dmand AI links Dr. Frerichs to 4 more medical groups.
Does Dr. Darin Lee Frerichs accept Medicare?
Yes. CMS data shows Dr. Frerichs billed Medicare for 83 services in 2024, and Dr. Frerichs accepts Medicare assignment.
What is Dr. Darin Lee Frerichs' MIPS score?
Dr. Frerichs' MIPS final score for performance year 2024 is 67 out of 100, reported as part of a group.
How many Medicare patients does Dr. Darin Lee Frerichs see?
CMS counts 218 Medicare patients who saw Dr. Frerichs in 2024, with an average age of 73.
Show 3 more questionsShow fewer questions
What services does Dr. Darin Lee Frerichs bill to Medicare?
In 2024, Dr. Frerichs' most billed Medicare services were surgery: heart and blood vessels (36620), anesthesia (00670) and surgery: brain, spine and nerves (64415).
Has Dr. Darin Lee Frerichs received payments from drug or device companies?
CMS Open Payments shows $381 in general payments to Dr. Frerichs from 8 companies from 2016 to 2024. The largest total came from CONMED Corporation.
How long has Dr. Darin Lee Frerichs been practicing?
Dr. Frerichs graduated from medical school in 2001, 25 years ago.
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