Dr. Erik Michael Grossmann, MD

  • Columbia, MO
  • Colorectal surgeon
NPI1851367601PAC ID0547264889
Medicare services, 2024
274
Medicare patients, 2024
175
Part D claims, 2024
112
Publications
9
MIPS score, 2024
80
Practice address
1 Hospital Dr, Columbia, MO 65201
Practice phone
Call (573) 882-4141
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

University Hospital (MU Health Care)

Columbia, Missouri

See all 5 affiliations

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Dr. Erik Michael Grossmann is a colorectal surgeon in Columbia, Missouri

Dr. Grossmann practices at University Hospital (MU Health Care) in Columbia, Missouri.

Dr. Grossmann's NPI, 1851367601, was assigned on February 23, 2006. Dr. Grossmann graduated from University of Missouri School of Medicine in 1996. Dr. Grossmann holds Missouri license 110753.

NPI and contact details
Medicare PAC ID
0547264889
NPI enumeration date
February 23, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(573) 882-4141
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
56
Medical school graduation
1996

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

Dr. Erik Michael Grossmann practices at University Hospital (MU Health Care) in Columbia, Missouri

Dr. Grossmann's primary practice is University Hospital (MU Health Care), at 1 Hospital Dr, Columbia, MO 65201 in Boone County. The practice phone is (573) 882-4141.

  • University Hospital (MU Health Care)
    1 Hospital Dr, Columbia, MO 65201 · Boone CountyPhone(573) 882-4141

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Erik Michael Grossmann is affiliated with 4 sites of care and 1 medical group

Dr. Grossmann's primary practice is University Hospital (MU Health Care) in Columbia, Missouri. Dr. Grossmann is also affiliated with University Hospital. The medical group on file is University of Missouri Health Care. Dmand AI also links Dr. Grossmann to 2 more hospitals, each named with a free account.

See all 5 affiliations for Dr. Grossmann

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Erik Michael Grossmann's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grossmann practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
University Hospital (MU Health Care)Available with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Erik Michael Grossmann is one of 35 colorectal surgeons in Missouri

Colon and rectal surgery is Dr. Grossmann's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Grossmann is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery. Dmand AI has Dr. Grossmann's licenses on file in 2 states: Missouri and Louisiana.

Specialties and state licenses

  • Colon and rectal surgery, MissouriPrimaryLicense 110753 · 1997 to 2026 · taxonomy 208C00000X
  • Louisiana license2002 to 2004

Clinical focus

Dmand AI lists colonoscopy, colon removal, gastrointestinal obstruction and hemorrhoids among the conditions Dr. Grossmann treats.

Colorectal surgeons near Dr. Grossmann

Counts of colorectal surgeons with a Dmand AI profile, by place and practice. Each opens the list.

35colorectal surgeons in Missouri
2colorectal surgeons in Columbia

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

Dr. Erik Michael Grossmann billed Medicare for 274 services in 2024

CMS data shows 274 Medicare services from Dr. Grossmann across 7 procedure codes in 2024, for 175 Medicare patients. Medicare paid $15,339 for them.

Medicare services, 2024274
Medicare patients175
Paid by Medicare$15,339
Procedure codes7

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

  • 2023
  • 2024
Office and hospital visits
2023: 1962024: 196No change
Surgery
2023: 652024: 7820%

Where Dr. Grossmann's Medicare services took place, 2024

  • In an office11642%
  • In a facility15858%

Dr. Grossmann compared with the Missouri median for colorectal surgeons, 2024

  • Dr. Grossmann
  • Missouri median
Medicare services
274vs 31513% below
Medicare patients
175vs 1908% below
Part D claims
85vs 20258% below

Medians across 34 colorectal surgeons in Missouri with Dmand AI profiles that report each measure.

Dr. Grossmann'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. Grossmann

Need commercial claims for Dr. Grossmann?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grossmann and other colorectal surgeons in Missouri.

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

Dr. Erik Michael Grossmann treated 175 Medicare patients in 2024, average age 70

CMS counts 175 Medicare patients who saw Dr. Grossmann in 2024. The largest group is 65 to 74, with 78 patients. 72% of them have high blood pressure, and 59% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.49, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Grossmann's median patient age at 67, with 57% women.

Medicare patients, 2024175
Average age70
Average risk score1.49
Also on Medicaid18%

Dr. Grossmann's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Grossmann's Medicare patients by sex, 2024

  • Women10158%
  • Men7442%

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

  1. High blood pressure72%
  2. High cholesterol59%
  3. Arthritis42%
  4. Cancer42%
  5. Diabetes29%
  6. Mood disorders26%
  7. Anxiety24%
  8. Depression23%

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

Dr. Grossmann's patients across all payers

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

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women57%
  • Men43%

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

Dr. Erik Michael Grossmann wrote 112 Medicare Part D claims in 2024

In 2024, Dr. Grossmann wrote 112 Medicare Part D claims for 73 patients. 100% of them were for generic drugs. CMS names the drug for 85 of them, across 2 drugs with 11 or more claims each, at $186 in total drug cost. In 2023, CMS named 71 claims across 2 drugs.

Part D claims, 2024112
Drugs named by CMS2
Total drug cost$186
Part D patients73

Dr. Grossmann'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. Grossmann's Part D claims, 2024

  • Opioids43%48 of 112 claims
  • Antibiotics46%52 of 112 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 712024: 8520%

Drugs named by CMS: 2 in 2024, 2 in 2023.

See all prescribing by Dr. Grossmann

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. Erik Michael Grossmann scored 80 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Dr. Grossmann for performance year 2024, reported as part of a group. Dr. Grossmann accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 46 procedures of colonoscopy by Dr. Grossmann, more than 62% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Grossmann's MIPS scores, performance year 2024

  • 80of 100Final score
  • 58.2of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 76of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Grossmann ranks in Medicare procedure volume

Colonoscopy
62nd percentile46 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Erik Michael Grossmann has 9 publications on record

Dmand AI links 9 papers to Dr. Grossmann in 2025. The most frequent topics are Interleukin-1, Bacterial Toxins and Cells, Cultured. Dr. Grossmann's most frequent co-authors are James G. Norman, MD and Yezaz Ahmed Ghouri, MD.

Papers9

Topics Dr. Grossmann writes about most

  • Interleukin-1
  • Bacterial Toxins
  • Cells, Cultured
  • Clostridioides difficile
  • Colorectal Neoplasms
  • Liver
  • Mice, Inbred C57BL
  • Receptors, Interleukin-1

Dr. Grossmann's most frequent co-authors

Recent publications by Dr. Grossmann

See all 9 publications and co-authors

See who Dr. Grossmann researches with

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

How network discovery works

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

Dr. Erik Michael Grossmann received $6,735 in industry payments from 2016 to 2025

CMS Open Payments shows 58 general payments to Dr. Grossmann from 12 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 47% of the total. Intuitive Surgical, Inc. paid the most, $5,268.

General payments to Dr. Grossmann by program year, 2016 to 2025

General payments to Dr. Grossmann by kind, 2016 to 2025

$6.7Kin total
  • Travel and lodging$3,14347%
  • Education$2,00030%
  • Food and beverage$1,49022%
  • Speaker and faculty fees$1022%

Companies that paid Dr. Grossmann the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Grossmann

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Erik Michael Grossmann has 3 awards and honors on record

Dmand AI lists 3 awards for Dr. Grossmann, most recently CMS Stage 1 2012 in 2011.

Awards and honors for Dr. Grossmann

  1. 2011
    • CMS Stage 1 2012
  2. Undated
    • ACS Fellow
    • Fellow

Source: Dmand AI Professional Profile Data

Dr. Erik Michael Grossmann graduated from University of Missouri School of Medicine

Dr. Grossmann graduated from University of Missouri School of Medicine in 1996. Dr. Grossmann is a member of ACS and ASCRS.

  1. Medical schoolUniversity of Missouri School of Medicine
  2. Board certified in colon & rectal surgeryAmerican Board of Colon and Rectal Surgery
  3. Board certified in surgeryAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. Erik Michael Grossmann accepts plans from 6 insurance carriers

Dr. Grossmann is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare

Plan types Dr. Grossmann accepts, by number of carriers

  1. Medicare6
  2. PPO4
  3. POS2
  4. HMO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Erik Michael Grossmann'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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. Erik Michael Grossmann

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. Erik Michael Grossmann's NPI number?

Dr. Erik Michael Grossmann's NPI number is 1851367601. It was assigned on February 23, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Erik Michael Grossmann?

Dr. Erik Michael Grossmann is a colorectal surgeon in Columbia, Missouri. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).

Where does Dr. Erik Michael Grossmann practice?

Dr. Grossmann practices at 1 Hospital Dr, Columbia, MO 65201. Dr. Grossmann's primary practice is University Hospital (MU Health Care) in Columbia, Missouri. Dmand AI also links Dr. Grossmann to 2 hospitals.

What is Dr. Erik Michael Grossmann's office phone number?

The practice phone on file for Dr. Grossmann is (573) 882-4141.

What is Dr. Erik Michael Grossmann's medical license number?

Dr. Grossmann holds Missouri license 110753, one of the licenses on file in 2 states.

Which states has Dr. Erik Michael Grossmann been licensed in?

Dmand AI has state licenses on file for Dr. Grossmann in Missouri (1997 to 2026) and Louisiana (2002 to 2004).

Which hospitals is Dr. Erik Michael Grossmann affiliated with?

Dr. Grossmann is affiliated with University Hospital. Dmand AI links Dr. Grossmann to 2 more hospitals.

What medical group is Dr. Erik Michael Grossmann part of?

Dr. Grossmann is linked to University of Missouri Health Care.

Does Dr. Erik Michael Grossmann accept Medicare?

Yes. CMS data shows Dr. Grossmann billed Medicare for 274 services in 2024, and Dr. Grossmann accepts Medicare assignment.

What is Dr. Erik Michael Grossmann's MIPS score?

Dr. Grossmann's MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Erik Michael Grossmann see?

CMS counts 175 Medicare patients who saw Dr. Grossmann in 2024, with an average age of 70.

Is Dr. Erik Michael Grossmann board certified?

Yes. Dr. Grossmann is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery.

What services does Dr. Erik Michael Grossmann bill to Medicare?

In 2024, Dr. Grossmann's most billed Medicare services were office visit, new patient (99203), office visit, established patient (99213) and surgery: digestive system (46600).

Where did Dr. Erik Michael Grossmann go to medical school?

Dr. Grossmann graduated from University of Missouri School of Medicine in 1996.

What drugs does Dr. Erik Michael Grossmann prescribe most?

In 2024 Medicare Part D data, Dr. Grossmann's most prescribed drugs by claims were Metronidazole and Oxycodone HCl.

Has Dr. Erik Michael Grossmann received payments from drug or device companies?

CMS Open Payments shows $6,735 in general payments to Dr. Grossmann from 12 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.

How long has Dr. Erik Michael Grossmann been practicing?

Dr. Grossmann graduated from medical school in 1996, 30 years ago.

Does Dr. Erik Michael Grossmann do research?

Dmand AI links 9 publications to Dr. Grossmann.

Who does Dr. Erik Michael Grossmann publish with?

Dr. Grossmann's most frequent co-authors are James G. Norman, MD (2 shared papers) and Yezaz Ahmed Ghouri, MD (1 shared paper).

What insurance does Dr. Erik Michael Grossmann accept?

Dr. Grossmann is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

Selling to colon and rectal surgery practices?

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