Dr. Matthew H. Nissing, MD
- Medicare services, 2023
- 933
- Part D claims, 2024
- 231
- Hospital affiliations
- 1
- Industry payments
- $6,586
- State license
- 1
- Practice address
- 1201 S Grand Blvd, Saint Louis, MO 63104
- Practice phone
- Call (314) 257-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nissing's professional email, personal email and mobile number
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Dr. Matthew H. Nissing is a gastroenterologist in Saint Louis, Missouri
Dr. Nissing practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care.
Dr. Nissing's NPI, 1558324418, was assigned on April 10, 2006. Dr. Nissing graduated from Washington University School of Medicine in 2000. Dr. Nissing holds Missouri license 2002007106.
- NPI
- 1558324418NPI Registry (opens in a new tab)
- NPI enumeration date
- April 10, 2006
- NPI status
- Active
- Practice phone
- (314) 257-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Matthew H. Nissing practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri
Dr. Nissing's primary practice is SSM Health Saint Louis University Hospital, at 1201 S Grand Blvd, Saint Louis, MO 63104 in St. Louis City. The practice phone is (314) 257-8000.
- SSM Health Saint Louis University Hospital1201 S Grand Blvd, Saint Louis, MO 63104 · St. Louis CityPhone(314) 257-8000
Source: Dmand AI Affiliation Data
Dr. Matthew H. Nissing is affiliated with 2 sites of care
Dr. Nissing's primary practice is SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care. Dmand AI also links Dr. Nissing to 1 behavioral health center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Matthew H. Nissing's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nissing practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| SSM Health Saint Louis University Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Matthew H. Nissing is one of 329 gastroenterologists in Missouri
Gastroenterology is Dr. Nissing's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Nissing is licensed in Missouri.
Specialties and state licenses
- Gastroenterology, MissouriPrimary
Gastroenterologists near Dr. Nissing
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. Matthew H. Nissing billed Medicare for 933 services in 2023
CMS data shows 933 Medicare services from Dr. Nissing across 12 procedure codes in 2023. Medicare paid $80,152 for them.
Dr. Nissing's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 7362023: 60817%
- Surgery
- 2022: 3772023: 31118%
- Other services
- 2022: 02023: 14
Where Dr. Nissing's Medicare services took place, 2023
- In an office34737%
- In a facility58663%
Dr. Nissing compared with the Missouri median for gastroenterologists, 2023
- Dr. Nissing
- Missouri median
- Medicare services
- 933vs 4162.2 times
- Part D claims
- 167vs 43462% below
Medians across 337 gastroenterologists in Missouri with Dmand AI profiles that report each measure.
Dr. Nissing's most billed Medicare procedure codes, 2023
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nissing and other gastroenterologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Matthew H. Nissing's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Nissing's median patient age at 65, with 35% women.
Dr. Nissing's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women35%
- Men64%
Source: Dmand AI Patient Panel Data
Dr. Matthew H. Nissing wrote 231 Medicare Part D claims in 2024
In 2024, Dr. Nissing wrote 231 Medicare Part D claims for 125 patients. 88% of them were for generic drugs. CMS names the drug for 167 of them, across 4 drugs with 11 or more claims each, at $7,544 in total drug cost. In 2023, CMS named 1,341 claims across 17 drugs.
Dr. Nissing's Part D claims by kind of drug, 2024
- Generic204 claims88%
- Brand-name27 claims12%
Dr. Nissing'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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,3412024: 16788%
Drugs named by CMS: 4 in 2024, 17 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
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Dr. Matthew H. Nissing received $6,586 in industry payments from 2016 to 2023
CMS Open Payments shows 445 general payments to Dr. Nissing from 31 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 98% of the total. Abbvie Inc. paid the most, $1,599.
General payments to Dr. Nissing by program year, 2016 to 2023
General payments to Dr. Nissing by kind, 2016 to 2023
- Food and beverage$6,46698%
- Education$1202%
Companies that paid Dr. Nissing the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Matthew H. Nissing graduated from Washington University School of Medicine
Dr. Nissing graduated from Washington University School of Medicine in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Matthew H. Nissing'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 Data |
| 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) |
| 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. Matthew H. Nissing
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. Matthew H. Nissing's NPI number?
Dr. Matthew H. Nissing's NPI number is 1558324418. It was assigned on April 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew H. Nissing?
Dr. Matthew H. Nissing is a gastroenterologist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Matthew H. Nissing practice?
Dr. Nissing practices at 1201 S Grand Blvd, Saint Louis, MO 63104. Dr. Nissing's primary practice is SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care. Dmand AI also links Dr. Nissing to 1 behavioral health center.
What is Dr. Matthew H. Nissing's office phone number?
The practice phone on file for Dr. Nissing is (314) 257-8000.
What is Dr. Matthew H. Nissing's medical license number?
Dr. Nissing holds Missouri license 2002007106.
Which hospitals is Dr. Matthew H. Nissing affiliated with?
Dr. Nissing practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri.
Does Dr. Matthew H. Nissing accept Medicare?
Yes. CMS data shows Dr. Nissing billed Medicare for 933 services in 2023.
What services does Dr. Matthew H. Nissing bill to Medicare?
In 2023, Dr. Nissing's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99232) and surgery: digestive system (45385).
Where did Dr. Matthew H. Nissing go to medical school?
Dr. Nissing graduated from Washington University School of Medicine in 2000.
What drugs does Dr. Matthew H. Nissing prescribe most?
In 2024 Medicare Part D data, Dr. Nissing's most prescribed drugs by claims were Pantoprazole Sodium, Famotidine and Mesalamine.
Has Dr. Matthew H. Nissing received payments from drug or device companies?
CMS Open Payments shows $6,586 in general payments to Dr. Nissing from 31 companies from 2016 to 2023. The largest total came from Abbvie Inc.
How long has Dr. Matthew H. Nissing been practicing?
Dr. Nissing graduated from medical school in 2000, 26 years ago.
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