Dr. Ryan James Greiner, MD

  • Minneapolis, MN
  • Hospitalist
NPI1710270665PAC ID6002047685
Medicare services, 2024
23
Medicare patients, 2024
39
Part D claims, 2024
166
Publications
1
Hospital affiliations
1
Practice address
3300 Oakdale North, Robbinsdale, MN 55422
Practice phone
Call (763) 520-5200
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

North Memorial Health - Robbinsdale Hospital

Hospital · Robbinsdale, Minnesota

See all 3 affiliations

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Dr. Ryan James Greiner is a hospitalist in Minneapolis, Minnesota

Dr. Greiner practices at North Memorial Health - Robbinsdale Hospital in Robbinsdale, Minnesota, part of Sanford Health.

Dr. Greiner's NPI, 1710270665, was assigned on May 25, 2011. Dr. Greiner holds Minnesota license 57226.

NPI and contact details
Medicare PAC ID
6002047685
NPI enumeration date
May 25, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(763) 520-5200
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
41
Medical school graduation
2011

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Ryan James Greiner practices at North Memorial Health - Robbinsdale Hospital in Robbinsdale, Minnesota

Dr. Greiner's primary practice is North Memorial Health - Robbinsdale Hospital, at 3300 Oakdale North, Robbinsdale, MN 55422 in Hennepin County. The practice phone is (763) 520-5200.

Source: Dmand AI Affiliation Data

Dr. Ryan James Greiner is affiliated with 1 site of care and 2 medical groups

Dr. Greiner's primary practice is North Memorial Health - Robbinsdale Hospital in Robbinsdale, Minnesota, part of Sanford Health. The medical group on file is Fairview Health Services. Dmand AI also links Dr. Greiner to 1 more medical group, named with a free account.

See all 3 affiliations for Dr. Greiner

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Ryan James Greiner's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greiner practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
North Memorial Health - Robbinsdale HospitalAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Ryan James Greiner is one of 357 hospitalists in Minnesota

Hospitalist is Dr. Greiner's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Greiner is licensed in Minnesota.

Specialties and state licenses

  • Hospitalist, MinnesotaPrimaryLicense 57226 · taxonomy 208M00000X

Hospitalists near Dr. Greiner

Counts of hospitalists 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. Ryan James Greiner billed Medicare for 23 services in 2024

CMS data shows 23 Medicare services from Dr. Greiner across 1 procedure code in 2024, for 39 Medicare patients. Medicare paid $1,364 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202423
Medicare patients39
Paid by Medicare$1,364
Procedure codes1

Dr. Greiner's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 272024: 2315%

Dr. Greiner compared with the Minnesota median for hospitalists, 2024

  • Dr. Greiner
  • Minnesota median
Medicare services
23vs 27692% below
Medicare patients
39vs 13170% below
Part D claims
62vs 7315% below

Medians across 344 hospitalists in Minnesota with Dmand AI profiles that report each measure.

Dr. Greiner'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.

See all procedures by Dr. Greiner

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Ryan James Greiner treated 39 Medicare patients in 2024, average age 73

CMS counts 39 Medicare patients who saw Dr. Greiner in 2024. The largest group is 85 and over, with 11 patients. 75% of them have high blood pressure, and 69% have high cholesterol. 44% are also on Medicaid. Their average risk score is 2.86, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Greiner's median patient age at 71, with 47% women.

Medicare patients, 202439
Average age73
Average risk score2.86
Also on Medicaid44%

Dr. Greiner's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Greiner's Medicare patients by sex, 2024

  • Women1744%
  • Men2256%

Chronic conditions among Dr. Greiner's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol69%
  3. Mood disorders64%
  4. Depression59%
  5. Chronic kidney disease54%
  6. Alzheimer's and dementia49%
  7. Anxiety46%
  8. Diabetes41%

Share of Medicare patients with each condition. A patient can have several.

Dr. Greiner's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women47%
  • Men52%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Ryan James Greiner wrote 166 Medicare Part D claims in 2024

In 2024, Dr. Greiner wrote 166 Medicare Part D claims for 21 patients. 83% of them were for generic drugs. CMS names the drug for 62 of them, across 3 drugs with 11 or more claims each, at $7,789 in total drug cost. In 2019, CMS named 15 claims across 1 drug.

Part D claims, 2024166
Drugs named by CMS3
Total drug cost$7,789
Part D patients21

Dr. Greiner's Part D claims by kind of drug, 2024

  • Generic137 claims83%
  • Brand-name29 claims17%

Dr. Greiner'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.

Part D claims for drugs CMS names, 2019 to 2024

  • 2019
  • 2024
Claims for drugs CMS names
2019: 152024: 62313%

Drugs named by CMS: 3 in 2024, 1 in 2019.

See all prescribing by Dr. Greiner

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

How Dr. Ryan James Greiner takes part in Medicare

Dr. Greiner 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)

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Dr. Ryan James Greiner has 1 publication on record

Dmand AI links 1 paper to Dr. Greiner. Dr. Greiner's most frequent co-author is Aimee Marie Merino, MD, PhD.

Papers1

Dr. Greiner's most frequent co-authors

Recent publications by Dr. Greiner

See all 1 publications and co-authors

See who Dr. Greiner researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Greiner works with, so you can find a warm path to the right hospitalists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Sources for Dr. Ryan James Greiner's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Ryan James Greiner

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. Ryan James Greiner's NPI number?

Dr. Ryan James Greiner's NPI number is 1710270665. It was assigned on May 25, 2011, and it is active in the NPI Registry.

What kind of doctor is Dr. Ryan James Greiner?

Dr. Ryan James Greiner is a hospitalist in Minneapolis, Minnesota. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Dr. Ryan James Greiner practice?

Dr. Greiner practices at 3300 Oakdale North, Robbinsdale, MN 55422. Dr. Greiner's primary practice is North Memorial Health - Robbinsdale Hospital in Robbinsdale, Minnesota, part of Sanford Health. Dmand AI also links Dr. Greiner to 1 medical group.

What is Dr. Ryan James Greiner's office phone number?

The practice phone on file for Dr. Greiner is (763) 520-5200.

What is Dr. Ryan James Greiner's medical license number?

Dr. Greiner holds Minnesota license 57226.

Which hospitals is Dr. Ryan James Greiner affiliated with?

Dr. Greiner practices at North Memorial Health - Robbinsdale Hospital in Robbinsdale, Minnesota.

What medical group is Dr. Ryan James Greiner part of?

Dr. Greiner is linked to Fairview Health Services. Dmand AI links Dr. Greiner to 1 more medical group.

Does Dr. Ryan James Greiner accept Medicare?

Yes. CMS data shows Dr. Greiner billed Medicare for 23 services in 2024, and Dr. Greiner accepts Medicare assignment.

How many Medicare patients does Dr. Ryan James Greiner see?

CMS counts 39 Medicare patients who saw Dr. Greiner in 2024, with an average age of 73.

What services does Dr. Ryan James Greiner bill to Medicare?

In 2024, Dr. Greiner's most billed Medicare services were hospital inpatient care (99232).

Show 4 more questionsShow fewer questions

What drugs does Dr. Ryan James Greiner prescribe most?

In 2024 Medicare Part D data, Dr. Greiner's most prescribed drugs by claims were Metoprolol Succinate, Eliquis and Amiodarone HCl.

How long has Dr. Ryan James Greiner been practicing?

Dr. Greiner graduated from medical school in 2011, 15 years ago.

Does Dr. Ryan James Greiner do research?

Dmand AI links 1 publication to Dr. Greiner.

Who does Dr. Ryan James Greiner publish with?

Dr. Greiner's most frequent co-authors are Aimee Marie Merino, MD, PhD (1 shared paper).

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