Dr. Joseph P. Colgan, MD

  • Rochester, MN
  • Hematology (internal medicine) physician
NPI1467432468
Medicare services, 2020
288
Part D claims, 2021
24
Publications
25
Hospital affiliations
1
State license
1
Practice address
1216 Second Street Southwest, Rochester, MN 55902
Practice phone
Call (507) 255-5123
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mayo Clinic Hospital, Saint Marys Campus

Hospital · Rochester, Minnesota

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Dr. Joseph P. Colgan is a hematology (internal medicine) physician in Rochester, Minnesota

Dr. Colgan practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic.

Dr. Colgan's NPI, 1467432468, was assigned on January 18, 2006. Dr. Colgan holds Minnesota license 21022.

NPI and contact details
NPI enumeration date
January 18, 2006
NPI status
Active
Practice phone
(507) 255-5123
Professional email
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Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Joseph P. Colgan practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota

Dr. Colgan's primary practice is Mayo Clinic Hospital, Saint Marys Campus, at 1216 Second Street Southwest, Rochester, MN 55902 in Olmsted County. The practice phone is (507) 255-5123.

Source: Dmand AI Affiliation Data

Dr. Joseph P. Colgan is affiliated with 1 site of care

Dr. Colgan's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic.

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

Dmand AI tracks the EHR system at Dr. Joseph P. Colgan's practice

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

EHR by site
SiteEHR vendor and product
Mayo Clinic Hospital, Saint Marys CampusAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Joseph P. Colgan is one of 97 hematology (internal medicine) physicians in Minnesota

Internal medicine is Dr. Colgan's primary specialty in the NPI Registry, under taxonomy code 207RH0000X. The record also lists hematology. Dr. Colgan is licensed in Minnesota.

Specialties and state licenses

  • Hematology (internal medicine), MinnesotaPrimaryLicense 21022 · taxonomy 207RH0000X

Hematology (internal medicine) physicians near Dr. Colgan

Counts of hematology (internal 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. Joseph P. Colgan billed Medicare for 288 services in 2020

CMS data shows 288 Medicare services from Dr. Colgan across 5 procedure codes in 2020. Medicare paid $20,617 for them. Every service was in an office.

Medicare services, 2020288
Paid by Medicare$20,617
Procedure codes5

Dr. Colgan's Medicare services by type, 2019 to 2020

  • 2019
  • 2020
Office and hospital visits
2019: 3762020: 28823%

Dr. Colgan compared with the Minnesota median for hematology (internal medicine) physicians, 2020

  • Dr. Colgan
  • Minnesota median
Medicare services
288vs 1,91685% below
Part D claims
24vs 15585% below

Medians across 86 hematology (internal medicine) physicians in Minnesota with Dmand AI profiles that report each measure.

Dr. Colgan's most billed Medicare procedure codes, 2020

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. Joseph P. Colgan's patients have a median age of 75

Across all payers, Dmand AI patient panel data puts Dr. Colgan's median patient age at 75, with 22% women.

Dr. Colgan's patients across all payers

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

Patient panel by age, all payers

Median age 75

Patient panel by sex, all payers

  • Women22%
  • Men78%

Source: Dmand AI Patient Panel Data

Dr. Joseph P. Colgan wrote 24 Medicare Part D claims in 2021

In 2021, Dr. Colgan wrote 24 Medicare Part D claims. They cover 2 drugs, with $164,159 in total drug cost. In 2020, CMS named 99 claims across 6 drugs.

Part D claims, 202124
Drugs named by CMS2
Total drug cost$164,159

Dr. Colgan's most prescribed drugs by claims, 2021

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, 2020 to 2021

  • 2020
  • 2021
Claims for drugs CMS names
2020: 992021: 2476%

Drugs named by CMS: 2 in 2021, 6 in 2020.

See all prescribing by Dr. Colgan

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

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Dr. Joseph P. Colgan has 25 publications on record

Dmand AI links 25 papers to Dr. Colgan, published from 2010 to 2018. 2011 was the busiest year, with 5. The most frequent topics are Antineoplastic Combined Chemotherapy Protocols, Cyclophosphamide and Everolimus. Dr. Colgan has published most often in Am J Hematol. Dr. Colgan's most frequent co-authors are Luis F. Porrata, MD, Thomas E. Witzig, MD and Thomas M. Habermann, MD.

Papers25
Years published2010 to 2018

Dr. Colgan's papers by year, 2010 to 2018

Topics Dr. Colgan writes about most

  • Antineoplastic Combined Chemotherapy Protocols
  • Cyclophosphamide
  • Everolimus
  • Lymphoma, Large B-Cell, Diffuse
  • Monocytes
  • Remission Induction
  • Rituximab
  • Doxorubicin

Dr. Colgan's most frequent co-authors

Recent publications by Dr. Colgan

See all 25 publications and co-authors

See who Dr. Colgan researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Colgan works with, so you can find a warm path to the right hematology (internal medicine) physicians.

How network discovery works

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

Sources for Dr. Joseph P. Colgan'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 Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (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. Joseph P. Colgan

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. Joseph P. Colgan's NPI number?

Dr. Joseph P. Colgan's NPI number is 1467432468. It was assigned on January 18, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Joseph P. Colgan?

Dr. Joseph P. Colgan is a hematology (internal medicine) physician in Rochester, Minnesota. The primary specialty in the NPI Registry is Hematology (Internal Medicine) Physician (taxonomy code 207RH0000X).

Where does Dr. Joseph P. Colgan practice?

Dr. Colgan practices at 1216 Second Street Southwest, Rochester, MN 55902. Dr. Colgan's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic.

What is Dr. Joseph P. Colgan's office phone number?

The practice phone on file for Dr. Colgan is (507) 255-5123.

What is Dr. Joseph P. Colgan's medical license number?

Dr. Colgan holds Minnesota license 21022.

Which hospitals is Dr. Joseph P. Colgan affiliated with?

Dr. Colgan practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota.

Does Dr. Joseph P. Colgan accept Medicare?

Yes. CMS data shows Dr. Colgan billed Medicare for 288 services in 2020.

What services does Dr. Joseph P. Colgan bill to Medicare?

In 2020, Dr. Colgan's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, new patient (99205).

What drugs does Dr. Joseph P. Colgan prescribe most?

In 2021 Medicare Part D data, Dr. Colgan's most prescribed drugs by claims were Premarin and Imbruvica.

How long has Dr. Joseph P. Colgan been practicing?

Dr. Colgan's NPI was assigned in 2006.

Does Dr. Joseph P. Colgan do research?

Dmand AI links 25 publications to Dr. Colgan, published from 2010 to 2018.

Who does Dr. Joseph P. Colgan publish with?

Dr. Colgan's most frequent co-authors are Luis F. Porrata, MD (17 shared papers), Thomas E. Witzig, MD (16 shared papers) and Thomas M. Habermann, MD (15 shared papers).

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