Anemia, Iron-DeficiencyAttitude of Health PersonnelCeliac Disease
Dr. Marisa Ann Spencer, MD
NPI1053637223PAC ID3870893910
- Medicare services, 2024
- 7,884
- Medicare patients, 2024
- 309
- Part D claims, 2024
- 551
- Publications
- 5
- Hospital affiliations
- 4
- Practice address
- 1997 Sloan N Pl, Saint Paul, MN 55117
- Practice phone
- Call (651) 383-3333
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Minneapolis Children's Surgery Center
Saint Paul, Minnesota
Find Dr. Spencer's professional email, personal email and mobile number
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Dr. Marisa Ann Spencer is a gastroenterologist in Saint Paul, Minnesota
Dr. Spencer practices at Minneapolis Children's Surgery Center in Saint Paul, Minnesota.
Dr. Spencer's NPI, 1053637223, was assigned on April 13, 2010. Dr. Spencer graduated from University of Virginia School of Medicine in 2010. Dr. Spencer holds Wisconsin license 69162.
NPI and contact details
- NPI
- 1053637223NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870893910
- NPI enumeration date
- April 13, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (651) 383-3333
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marisa Ann Spencer practices at Minneapolis Children's Surgery Center in Saint Paul, Minnesota
Dr. Spencer's primary practice is Minneapolis Children's Surgery Center, at 1997 Sloan N Pl, Saint Paul, MN 55117 in Ramsey County. The practice phone is (651) 383-3333.
- Minneapolis Children's Surgery Center1997 Sloan N Pl, Saint Paul, MN 55117 · Ramsey CountyPhone(651) 383-3333
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Marisa Ann Spencer is affiliated with 6 sites of care and 1 medical group
Dr. Spencer's primary practice is Minneapolis Children's Surgery Center in Saint Paul, Minnesota. Dr. Spencer is also affiliated with United Hospital. The medical group on file is MNGI Digestive Health. Dmand AI also links Dr. Spencer to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Minneapolis Children's Surgery CenterPrimary
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. Marisa Ann Spencer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Spencer practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Minneapolis Children's Surgery Center | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marisa Ann Spencer is one of 366 gastroenterologists in Minnesota
Gastroenterology is Dr. Spencer's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Spencer is licensed in Wisconsin.
Specialties and state licenses
- Gastroenterology, WisconsinPrimary
Gastroenterologists near Dr. Spencer
Counts of gastroenterologists 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. Marisa Ann Spencer billed Medicare for 7,884 services in 2024
CMS data shows 7,884 Medicare services from Dr. Spencer across 14 procedure codes in 2024, for 309 Medicare patients. Medicare paid $185,198 for them.
Medicare services, 20247,884
Medicare patients309
Paid by Medicare$185,198
Procedure codes14
Dr. Spencer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 02024: 7,170
- Lab and pathology
- 2023: 832024: 275231%
- Surgery
- 2023: 712024: 220210%
- Office and hospital visits
- 2023: 412024: 150266%
- Tests and treatments
- 2023: 02024: 56
- Other services
- 2023: 02024: 13
Where Dr. Spencer's Medicare services took place, 2024
- In an office7,63497%
- In a facility2503%
Dr. Spencer compared with the Minnesota median for gastroenterologists, 2024
- Dr. Spencer
- Minnesota median
- Medicare services
- 7,884vs 27428.8 times
- Medicare patients
- 309vs 19856% above
- Part D claims
- 360vs 1422.5 times
Medians across 380 gastroenterologists in Minnesota with Dmand AI profiles that report each measure.
Dr. Spencer'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marisa Ann Spencer treated 309 Medicare patients in 2024, average age 70
CMS counts 309 Medicare patients who saw Dr. Spencer in 2024. The largest group is 65 to 74, with 164 patients. 63% of them have high blood pressure, and 59% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.46, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Spencer's median patient age at 59, with 65% women.
Medicare patients, 2024309
Average age70
Average risk score1.46
Also on Medicaid17%
Dr. Spencer's Medicare patients by age, 2024
Dr. Spencer's Medicare patients by sex, 2024
- Women19061%
- Men11939%
Chronic conditions among Dr. Spencer's Medicare patients, 2024
- High blood pressure63%
- High cholesterol59%
- Arthritis40%
- Diabetes31%
- Mood disorders31%
- Anxiety30%
- Depression28%
- Chronic kidney disease26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Spencer'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
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marisa Ann Spencer wrote 551 Medicare Part D claims in 2024
In 2024, Dr. Spencer wrote 551 Medicare Part D claims for 162 patients. 82% of them were for generic drugs. CMS names the drug for 360 of them, across 13 drugs with 11 or more claims each, at $1,132,405 in total drug cost. In 2023, CMS named 666 claims across 26 drugs.
Part D claims, 2024551
Drugs named by CMS13
Total drug cost$1.1M
Part D patients162
Dr. Spencer's Part D claims by kind of drug, 2024
- Generic450 claims82%
- Brand-name101 claims18%
Dr. Spencer'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. Spencer's Part D claims, 2024
- Antibiotics6%32 of 551 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: 6662024: 36046%
Drugs named by CMS: 13 in 2024, 26 in 2023.
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. Marisa Ann Spencer ranks in the 75th percentile for colonoscopy in Medicare
Dr. Spencer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Spencer as offering telehealth. CMS counts 82 procedures of colonoscopy by Dr. Spencer, more than 75% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Spencer ranks in Medicare procedure volume
- Colonoscopy
- 75th percentile82 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 72nd percentile82 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Marisa Ann Spencer has 5 publications on record
Dmand AI links 5 papers to Dr. Spencer in 2017. The most frequent topics are Celiac Disease. Dr. Spencer has published most often in Am J Gastroenterol. Dr. Spencer's most frequent co-authors are William D. Chey, MD, Peter H.r. Green, MD and Adrienne Laurel Lenhart.
Papers5
Topics Dr. Spencer writes about most
- Celiac Disease
Dr. Spencer's most frequent co-authors
- William D. Chey, MD2 shared papers
- Peter H.r. Green, MD1 shared paper
- Adrienne Laurel Lenhart1 shared paper
Recent publications by Dr. Spencer
Curr Treat Options Gastroenterol
Am J Gastroenterol
Dilatation, PathologicDouble-Balloon EnteroscopyGastrointestinal Hemorrhage
Am J Gastroenterol
Celiac DiseaseDuodenumImmunosuppressive Agents
J Neurogastroenterol Motil
See who Dr. Spencer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Spencer works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Marisa Ann Spencer received $1,608 in industry payments from 2016 to 2025
CMS Open Payments shows 95 general payments to Dr. Spencer from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $539.
General payments to Dr. Spencer by program year, 2016 to 2025
Companies that paid Dr. Spencer the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Marisa Ann Spencer graduated from University of Virginia School of Medicine
Dr. Spencer graduated from University of Virginia School of Medicine in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Marisa Ann Spencer'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Marisa Ann Spencer
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. Marisa Ann Spencer's NPI number?
Dr. Marisa Ann Spencer's NPI number is 1053637223. It was assigned on April 13, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Marisa Ann Spencer?
Dr. Marisa Ann Spencer is a gastroenterologist in Saint Paul, Minnesota. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Marisa Ann Spencer practice?
Dr. Spencer practices at 1997 Sloan N Pl, Saint Paul, MN 55117. Dr. Spencer's primary practice is Minneapolis Children's Surgery Center in Saint Paul, Minnesota. Dmand AI also links Dr. Spencer to 3 hospitals and 1 group practice or clinic.
What is Dr. Marisa Ann Spencer's office phone number?
The practice phone on file for Dr. Spencer is (651) 383-3333.
What is Dr. Marisa Ann Spencer's medical license number?
Dr. Spencer holds Wisconsin license 69162.
Which hospitals is Dr. Marisa Ann Spencer affiliated with?
Dr. Spencer is affiliated with United Hospital. Dmand AI links Dr. Spencer to 3 more hospitals.
What medical group is Dr. Marisa Ann Spencer part of?
Dr. Spencer is linked to MNGI Digestive Health.
Does Dr. Marisa Ann Spencer accept Medicare?
Yes. CMS data shows Dr. Spencer billed Medicare for 7,884 services in 2024, and Dr. Spencer accepts Medicare assignment.
Does Dr. Marisa Ann Spencer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Spencer as offering telehealth services.
How many Medicare patients does Dr. Marisa Ann Spencer see?
CMS counts 309 Medicare patients who saw Dr. Spencer in 2024, with an average age of 70.
Show 7 more questionsShow fewer questions
What services does Dr. Marisa Ann Spencer bill to Medicare?
In 2024, Dr. Spencer's most billed Medicare services were injected or infused drug (J3380), injected or infused drug (J1745) and lab and pathology test (88305).
Where did Dr. Marisa Ann Spencer go to medical school?
Dr. Spencer graduated from University of Virginia School of Medicine in 2010.
What drugs does Dr. Marisa Ann Spencer prescribe most?
In 2024 Medicare Part D data, Dr. Spencer's most prescribed drugs by claims were Omeprazole, Esomeprazole Magnesium and Stelara.
Has Dr. Marisa Ann Spencer received payments from drug or device companies?
CMS Open Payments shows $1,608 in general payments to Dr. Spencer from 19 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Marisa Ann Spencer been practicing?
Dr. Spencer graduated from medical school in 2010, 16 years ago.
Does Dr. Marisa Ann Spencer do research?
Dmand AI links 5 publications to Dr. Spencer.
Who does Dr. Marisa Ann Spencer publish with?
Dr. Spencer's most frequent co-authors are William D. Chey, MD (2 shared papers), Peter H.r. Green, MD (1 shared paper) and Adrienne Laurel Lenhart (1 shared paper).
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