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Dr. Colin Fred Greineder, MD
NPI1679648232
- Medicare services, 2024
- 140
- Medicare patients, 2024
- 143
- Part D claims, 2024
- 11
- Publications
- 59
- Industry payments
- $2,040
- Practice address
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Practice phone
- Call (734) 936-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Hospital
School-Based Health Center · Ann Arbor, Michigan
Find Dr. Greineder'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.
Dr. Colin Fred Greineder is an emergency medicine physician in Ann Arbor, Michigan
Dr. Greineder practices at University Hospital in Ann Arbor, Michigan.
Dr. Greineder's NPI, 1679648232, was assigned on November 21, 2006. Dr. Greineder graduated from Yale University School of Medicine in 2003. Dr. Greineder holds Michigan license 4301081618.
NPI and contact details
- NPI
- 1679648232NPI Registry (opens in a new tab)
- NPI enumeration date
- November 21, 2006
- NPI status
- Active
- Practice phone
- (734) 936-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Colin Fred Greineder practices at University Hospital in Ann Arbor, Michigan
Dr. Greineder's primary practice is University Hospital, at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The practice phone is (734) 936-4000.
- University Hospital1500 E Medical Center Dr, Ann Arbor, MI 48109Phone(734) 936-4000
Source: Dmand AI Affiliation Data
Dr. Colin Fred Greineder is affiliated with 1 site of care and 1 medical group
Dr. Greineder's primary practice is University Hospital in Ann Arbor, Michigan. The medical group on file is University of Michigan Health. Dr. Greineder's employer is on file too: a school & student health.
University HospitalPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Colin Fred Greineder's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greineder practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Colin Fred Greineder is one of 2,045 emergency medicine physicians in Michigan
Emergency medicine is Dr. Greineder's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Greineder's licenses on file in 2 states: Michigan and Pennsylvania.
Specialties and state licenses
- Emergency medicine, MichiganPrimary
- Pennsylvania license
Emergency medicine physicians near Dr. Greineder
Counts of emergency medicine physicians 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. Colin Fred Greineder billed Medicare for 140 services in 2024
CMS data shows 140 Medicare services from Dr. Greineder across 3 procedure codes in 2024, for 143 Medicare patients. Medicare paid $18,287 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024140
Medicare patients143
Paid by Medicare$18,287
Procedure codes3
Dr. Greineder's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1992024: 14030%
Dr. Greineder compared with the Michigan median for emergency medicine physicians, 2024
- Dr. Greineder
- Michigan median
- Medicare services
- 140vs 23440% below
- Medicare patients
- 143vs 21433% below
Medians across 1,937 emergency medicine physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Greineder'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.
Need commercial claims for Dr. Greineder?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Greineder and other emergency medicine physicians in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Colin Fred Greineder treated 143 Medicare patients in 2024, average age 69
CMS counts 143 Medicare patients who saw Dr. Greineder in 2024. The largest group is 65 to 74, with 48 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 21% are also on Medicaid. Their average risk score is 2.76, 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. Greineder's median patient age at 53, with 53% women.
Medicare patients, 2024143
Average age69
Average risk score2.76
Also on Medicaid21%
Dr. Greineder's Medicare patients by age, 2024
Dr. Greineder's Medicare patients by sex, 2024
- Women6948%
- Men7452%
Chronic conditions among Dr. Greineder's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Arthritis50%
- Chronic kidney disease45%
- Diabetes45%
- Anxiety44%
- Ischemic heart disease43%
- Mood disorders39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Greineder's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Colin Fred Greineder wrote 11 Medicare Part D claims in 2024
In 2024, Dr. Greineder wrote 11 Medicare Part D claims.
Part D claims, 202411
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Colin Fred Greineder has 59 publications on record
Dmand AI links 59 papers to Dr. Greineder, published from 2011 to 2025. 2023 was the busiest year, with 6. The most frequent topics are Platelet Endothelial Cell Adhesion Molecule-1, Mice, Inbred C57BL and Drug Delivery Systems. Dr. Greineder has published most often in Bioconjug Chem. Dr. Greineder's most frequent co-authors are Geoffrey Douglas Barnes, MD, Jacob Samuel Brenner, MD, PhD and Connor Q. O'Hare, MD.
Papers59
Years published2011 to 2025
Dr. Greineder's papers by year, 2016 to 2025
Topics Dr. Greineder writes about most
- Platelet Endothelial Cell Adhesion Molecule-1
- Mice, Inbred C57BL
- Drug Delivery Systems
- Intercellular Adhesion Molecule-1
- Pulmonary Embolism
- Antibodies, Monoclonal
- Liposomes
- Nanoparticles
Dr. Greineder's most frequent co-authors
- Geoffrey Douglas Barnes, MD10 shared papers
- Jacob Samuel Brenner, MD, PhD10 shared papers
- Connor Q. O'Hare, MD6 shared papers
Recent publications by Dr. Greineder
Antibodies, BispecificBlood-Brain BarrierBrain
Decision Support Systems, ClinicalElectronic Health RecordsEmergency Service, Hospital
See who Dr. Greineder researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Greineder works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Colin Fred Greineder received $2,040 in industry payments in 2025
CMS Open Payments shows 4 general payments to Dr. Greineder from 1 drug or device company in 2025. Travel and lodging make up the largest share, 90% of the total. Novartis Pharmaceuticals Corporation paid the most, $2,040.
General payments to Dr. Greineder by kind, 2025 to 2025
$2Kin total
- Travel and lodging$1,84390%
- Food and beverage$19710%
Companies that paid Dr. Greineder 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. Colin Fred Greineder graduated from Yale University School of Medicine
Dr. Greineder graduated from Yale University School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Colin Fred Greineder'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 (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Colin Fred Greineder
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. Colin Fred Greineder's NPI number?
Dr. Colin Fred Greineder's NPI number is 1679648232. It was assigned on November 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Colin Fred Greineder?
Dr. Colin Fred Greineder is an emergency medicine physician in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Colin Fred Greineder practice?
Dr. Greineder practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. Dr. Greineder's primary practice is University Hospital in Ann Arbor, Michigan.
What is Dr. Colin Fred Greineder's office phone number?
The practice phone on file for Dr. Greineder is (734) 936-4000.
What is Dr. Colin Fred Greineder's medical license number?
Dr. Greineder holds Michigan license 4301081618, one of the licenses on file in 2 states.
Which states has Dr. Colin Fred Greineder been licensed in?
Dmand AI has state licenses on file for Dr. Greineder in Michigan and Pennsylvania.
What medical group is Dr. Colin Fred Greineder part of?
Dr. Greineder is linked to University of Michigan Health.
Does Dr. Colin Fred Greineder accept Medicare?
Yes. CMS data shows Dr. Greineder billed Medicare for 140 services in 2024.
How many Medicare patients does Dr. Colin Fred Greineder see?
CMS counts 143 Medicare patients who saw Dr. Greineder in 2024, with an average age of 69.
What services does Dr. Colin Fred Greineder bill to Medicare?
In 2024, Dr. Greineder's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
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Where did Dr. Colin Fred Greineder go to medical school?
Dr. Greineder graduated from Yale University School of Medicine in 2003.
Has Dr. Colin Fred Greineder received payments from drug or device companies?
CMS Open Payments shows $2,040 in general payments to Dr. Greineder from 1 company from 2025 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Colin Fred Greineder been practicing?
Dr. Greineder graduated from medical school in 2003, 23 years ago.
Does Dr. Colin Fred Greineder do research?
Dmand AI links 59 publications to Dr. Greineder, published from 2011 to 2025.
Who does Dr. Colin Fred Greineder publish with?
Dr. Greineder's most frequent co-authors are Geoffrey Douglas Barnes, MD (10 shared papers), Jacob Samuel Brenner, MD, PhD (10 shared papers) and Connor Q. O'Hare, MD (6 shared papers).
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