Marcus J. Nielsen, PA
- Medicare patients, 2024
- 98
- Part D claims, 2024
- 311
- Hospital affiliations
- 1
- Industry payments
- $174
- Medical group
- 1
- Practice address
- P O Box 406, 1113 Sherman St, Saint Paul, NE 68873
- Practice phone
- Call (308) 754-4421
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Marcus Nielsen's 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.
Marcus J. Nielsen is a physician assistant in Saint Paul, Nebraska
Marcus Nielsen practices at Howard County Medical Center in Saint Paul, Nebraska, part of Howard County Medical Center.
Marcus Nielsen's NPI, 1821311853, was assigned on March 4, 2010. Marcus Nielsen holds Nebraska license 1506.
- NPI
- 1821311853NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406983287
- NPI enumeration date
- March 4, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (308) 754-4421
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marcus J. Nielsen practices at 2 locations in Saint Paul, Nebraska
Marcus Nielsen's primary practice is Howard County Medical Center, at P O Box 406, 1113 Sherman St, Saint Paul, NE 68873 in Howard County. The practice phone is (308) 754-4421. Marcus Nielsen also practices at Howard County Medical Center, 1113 Sherman St, Saint Paul, NE 68873.
- Howard County Medical CenterPrimaryP O Box 406, 1113 Sherman St, Saint Paul, NE 68873 · Howard CountyPhone(308) 754-4421
- Howard County Medical Center1113 Sherman St, Saint Paul, NE 68873 · Howard CountyPhone(308) 754-4421
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Marcus J. Nielsen is affiliated with 1 site of care and 1 medical group
Marcus Nielsen's primary practice is Howard County Medical Center in Saint Paul, Nebraska, part of Howard County Medical Center. The medical group on file is Howard County Medical Center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Marcus J. Nielsen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marcus Nielsen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Howard County Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Howard County Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Marcus J. Nielsen is one of 1,154 physician assistants in Nebraska
Physician assistant is Marcus Nielsen's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Marcus Nielsen is licensed in Nebraska.
Specialties and state licenses
- Physician assistant, NebraskaPrimary
Physician assistants near Marcus Nielsen
Counts of physician assistants 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
Marcus J. Nielsen treated 98 Medicare patients in 2024, average age 75
CMS counts 98 Medicare patients who saw Marcus Nielsen in 2024. The largest group is 65 to 74, with 38 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Marcus Nielsen's median patient age at 59, with 51% women.
Marcus Nielsen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Marcus Nielsen's Medicare patients by sex, 2024
- Women5556%
- Men4344%
Chronic conditions among Marcus Nielsen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Arthritis56%
- Diabetes34%
- Chronic kidney disease33%
- Osteoporosis31%
- Mood disorders29%
- Depression27%
Share of Medicare patients with each condition. A patient can have several.
Marcus Nielsen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marcus J. Nielsen wrote 311 Medicare Part D claims in 2024
In 2024, Marcus Nielsen wrote 311 Medicare Part D claims for 166 patients. 95% of them were for generic drugs.
Marcus Nielsen's Part D claims by kind of drug, 2024
- Generic295 claims95%
- Brand-name16 claims5%
Drug classes CMS tracks in Marcus Nielsen's Part D claims, 2024
- Opioids26%80 of 311 claims
- Antibiotics21%66 of 311 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Marcus J. Nielsen takes part in Medicare
Marcus Nielsen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Marcus J. Nielsen received $174 in industry payments in 2025
CMS Open Payments shows 6 general payments to Marcus Nielsen from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $120.
Companies that paid Marcus Nielsen the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Marcus J. Nielsen'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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 (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) |
| 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 Marcus J. Nielsen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marcus J. Nielsen's NPI number?
Marcus J. Nielsen's NPI number is 1821311853. It was assigned on March 4, 2010, and it is active in the NPI Registry.
What does Marcus J. Nielsen specialize in?
Marcus J. Nielsen is a physician assistant in Saint Paul, Nebraska. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marcus J. Nielsen practice?
Marcus Nielsen practices at P O Box 406, 1113 Sherman St, Saint Paul, NE 68873. Marcus Nielsen also practices at 1113 Sherman St, Saint Paul, NE 68873. Marcus Nielsen's primary practice is Howard County Medical Center in Saint Paul, Nebraska, part of Howard County Medical Center.
What is Marcus J. Nielsen's office phone number?
The practice phone on file for Marcus Nielsen is (308) 754-4421.
What is Marcus J. Nielsen's medical license number?
Marcus Nielsen holds Nebraska license 1506.
Which hospitals is Marcus J. Nielsen affiliated with?
Marcus Nielsen practices at Howard County Medical Center in Saint Paul, Nebraska.
What medical group is Marcus J. Nielsen part of?
Marcus Nielsen is linked to Howard County Medical Center.
Does Marcus J. Nielsen accept Medicare?
Yes. CMS lists Marcus Nielsen as accepting Medicare assignment.
How many Medicare patients does Marcus J. Nielsen see?
CMS counts 98 Medicare patients who saw Marcus Nielsen in 2024, with an average age of 75.
Has Marcus J. Nielsen received payments from drug or device companies?
CMS Open Payments shows $174 in general payments to Marcus Nielsen from 4 companies from 2025 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Marcus J. Nielsen been practicing?
Marcus Nielsen graduated from medical school in 2009, 17 years ago.
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