Dr. Brian Longhurst Merrill, DO
- Medicare services, 2024
- 143
- Medicare patients, 2024
- 45
- Part D claims, 2024
- 2,447
- Industry payments
- $125
- Affiliated sites
- 1
- Practice address
- 1720 S Cliff Ave, Sioux Falls, SD 57105
- Practice phone
- Call (605) 334-5630
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Prairie Rehabilitation
Medicare-Certified Rehab Agency · Sioux Falls, South Dakota
Find Dr. Merrill's professional email, personal email and mobile number
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Dr. Brian Longhurst Merrill is a psychiatrist in Sioux Falls, South Dakota
Dr. Merrill practices at Prairie Rehabilitation in Sioux Falls, South Dakota.
Dr. Merrill's NPI, 1982648929, was assigned on June 16, 2006. Dr. Merrill graduated from Arizona College of Osteopathic Medicine Mid Western University in 2000. Dr. Merrill holds Wisconsin license 1851-321.
- NPI
- 1982648929NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072575802
- NPI enumeration date
- June 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (605) 334-5630
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian Longhurst Merrill practices at Prairie Rehabilitation in Sioux Falls, South Dakota
Dr. Merrill's primary practice is Prairie Rehabilitation, at 1720 S Cliff Ave, Sioux Falls, SD 57105. The practice phone is (605) 334-5630.
- Prairie Rehabilitation1720 S Cliff Ave, Sioux Falls, SD 57105Phone(605) 334-5630
Source: Dmand AI Affiliation Data
Dr. Brian Longhurst Merrill is affiliated with 1 site of care and 2 medical groups
Dr. Merrill's primary practice is Prairie Rehabilitation in Sioux Falls, South Dakota. The medical group on file is ElevaCare. Dmand AI also links Dr. Merrill to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Brian Longhurst Merrill's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Merrill practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prairie Rehabilitation | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian Longhurst Merrill is one of 82 psychiatrists in South Dakota
Psychiatry is Dr. Merrill's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Merrill's licenses on file in 3 states: Wisconsin, Minnesota and Utah.
Specialties and state licenses
- Psychiatry, WisconsinPrimary
- Minnesota license
- Utah license
Psychiatrists near Dr. Merrill
Counts of psychiatrists 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. Brian Longhurst Merrill billed Medicare for 143 services in 2024
CMS data shows 143 Medicare services from Dr. Merrill across 1 procedure code in 2024, all of them office visits, for 45 Medicare patients. Medicare paid $10,385 for them. Every service was in an office.
Dr. Merrill compared with the South Dakota median for psychiatrists, 2024
- Dr. Merrill
- South Dakota median
- Medicare services
- 143vs 16614% below
- Medicare patients
- 45vs 7439% below
- Part D claims
- 2,316vs 3167.3 times
Medians across 89 psychiatrists in South Dakota with Dmand AI profiles that report each measure.
Dr. Merrill's 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Merrill and other psychiatrists in South Dakota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian Longhurst Merrill treated 45 Medicare patients in 2024, average age 48
CMS counts 45 Medicare patients who saw Dr. Merrill in 2024. The largest group is under 65, with 34 patients. 64% of them have mood disorders, and 51% have schizophrenia and other psychoses. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Merrill's median patient age at 39, with 55% women.
Dr. Merrill's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Merrill's Medicare patients by sex, 2024
- Women2249%
- Men2351%
Chronic conditions among Dr. Merrill's Medicare patients, 2024
- Mood disorders64%
- Schizophrenia and other psychoses51%
- Anxiety49%
- Bipolar disorder44%
- High cholesterol40%
- Depression38%
- High blood pressure36%
- Tobacco use33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Merrill's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian Longhurst Merrill wrote 2,447 Medicare Part D claims in 2024
In 2024, Dr. Merrill wrote 2,447 Medicare Part D claims for 109 patients. 86% of them were for generic drugs. CMS names the drug for 2,316 of them, across 56 drugs with 11 or more claims each, at $990,008 in total drug cost.
Dr. Merrill's Part D claims by kind of drug, 2024
- Generic2,112 claims86%
- Brand-name335 claims14%
Dr. Merrill's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Merrill's Part D claims, 2024
- Antipsychotics, patients 65 and over7%165 of 2,447 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Brian Longhurst Merrill offers telehealth to Medicare patients
Dr. Merrill accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Merrill as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Brian Longhurst Merrill received $125 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Merrill from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Neurocrine BioSciences, Inc. paid the most, $125.
Companies that paid Dr. Merrill the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Brian Longhurst Merrill graduated from Arizona College of Osteopathic Medicine Mid Western University
Dr. Merrill graduated from Arizona College of Osteopathic Medicine Mid Western University in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian Longhurst Merrill'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Brian Longhurst Merrill
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. Brian Longhurst Merrill's NPI number?
Dr. Brian Longhurst Merrill's NPI number is 1982648929. It was assigned on June 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian Longhurst Merrill?
Dr. Brian Longhurst Merrill is a psychiatrist in Sioux Falls, South Dakota. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Brian Longhurst Merrill practice?
Dr. Merrill practices at 1720 S Cliff Ave, Sioux Falls, SD 57105. Dr. Merrill's primary practice is Prairie Rehabilitation in Sioux Falls, South Dakota. Dmand AI also links Dr. Merrill to 1 medical group.
What is Dr. Brian Longhurst Merrill's office phone number?
The practice phone on file for Dr. Merrill is (605) 334-5630.
What is Dr. Brian Longhurst Merrill's medical license number?
Dr. Merrill holds Wisconsin license 1851-321, one of the licenses on file in 3 states.
Which states has Dr. Brian Longhurst Merrill been licensed in?
Dmand AI has state licenses on file for Dr. Merrill in Wisconsin, Minnesota and Utah.
What medical group is Dr. Brian Longhurst Merrill part of?
Dr. Merrill is linked to ElevaCare. Dmand AI links Dr. Merrill to 1 more medical group.
Does Dr. Brian Longhurst Merrill accept Medicare?
Yes. CMS data shows Dr. Merrill billed Medicare for 143 services in 2024, and Dr. Merrill accepts Medicare assignment.
Does Dr. Brian Longhurst Merrill offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Merrill as offering telehealth services.
How many Medicare patients does Dr. Brian Longhurst Merrill see?
CMS counts 45 Medicare patients who saw Dr. Merrill in 2024, with an average age of 48.
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What services does Dr. Brian Longhurst Merrill bill to Medicare?
In 2024, Dr. Merrill's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Brian Longhurst Merrill go to medical school?
Dr. Merrill graduated from Arizona College of Osteopathic Medicine Mid Western University in 2000.
What drugs does Dr. Brian Longhurst Merrill prescribe most?
In 2024 Medicare Part D data, Dr. Merrill's most prescribed drugs by claims were Lamotrigine, Quetiapine Fumarate and Trazodone HCl.
Has Dr. Brian Longhurst Merrill received payments from drug or device companies?
CMS Open Payments shows $125 in general payments to Dr. Merrill from 1 company from 2025 to 2025. The largest total came from Neurocrine BioSciences, Inc.
How long has Dr. Brian Longhurst Merrill been practicing?
Dr. Merrill graduated from medical school in 2000, 26 years ago.
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