Dr. Marianne Theresa Ritchie, MD
- Medicare services, 2020
- 51
- Part D claims, 2021
- 42
- Industry payments
- $770
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 132 S 10th St, Phila, PA 19107-5244
- Practice phone
- Call (215) 955-8900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Methodist Associates In Healthcare
Medical specialty practice · Phila, Pennsylvania
Find Dr. Ritchie'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. Marianne Theresa Ritchie is a gastroenterologist in Pennsylvania
Dr. Ritchie practices at Methodist Associates In Healthcare in Phila, Pennsylvania.
Dr. Ritchie's NPI, 1902984255, was assigned on November 2, 2006. Dr. Ritchie holds Pennsylvania license MD026713E.
- NPI
- 1902984255NPI Registry (opens in a new tab)
- NPI enumeration date
- November 2, 2006
- NPI status
- Active
- Practice phone
- (215) 955-8900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marianne Theresa Ritchie practices at Methodist Associates in Healthcare in Phila, Pennsylvania
Dr. Ritchie's primary practice is Methodist Associates in Healthcare, at 132 S 10th St, Phila, PA 19107-5244. The practice phone is (215) 955-8900.
- Methodist Associates in Healthcare132 S 10th St, Phila, PA 19107-5244Phone(215) 955-8900
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marianne Theresa Ritchie is affiliated with 1 site of care and 1 medical group
Dr. Ritchie's primary practice is Methodist Associates In Healthcare in Phila, Pennsylvania. Dmand AI also links Dr. Ritchie to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Marianne Theresa Ritchie's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ritchie practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Methodist Associates In Healthcare | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marianne Theresa Ritchie is one of 899 gastroenterologists in Pennsylvania
Gastroenterology is Dr. Ritchie's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Ritchie is licensed in Pennsylvania.
Specialties and state licenses
- Gastroenterology, PennsylvaniaPrimary
Gastroenterologists near Dr. Ritchie
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. Marianne Theresa Ritchie billed Medicare for 51 services in 2020
CMS data shows 51 Medicare services from Dr. Ritchie across 2 procedure codes in 2020, all of them office visits. Medicare paid $5,398 for them. Every service was in an office.
Dr. Ritchie's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 532020: 514%
- Surgery
- 2019: 332020: 0100%
Dr. Ritchie compared with the Pennsylvania median for gastroenterologists, 2020
- Dr. Ritchie
- Pennsylvania median
- Medicare services
- 51vs 40187% below
- Part D claims
- 42vs 37589% below
Medians across 899 gastroenterologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Ritchie'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ritchie and other gastroenterologists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marianne Theresa Ritchie's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. Ritchie's median patient age at 71, with 100% women.
Dr. Ritchie's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Marianne Theresa Ritchie wrote 42 Medicare Part D claims in 2021
In 2021, Dr. Ritchie wrote 42 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $1,577 in total drug cost. In 2020, CMS named 125 claims across 4 drugs.
Dr. Ritchie'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: 1252021: 4266%
Drugs named by CMS: 2 in 2021, 4 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Marianne Theresa Ritchie received $770 in industry payments from 2017 to 2024
CMS Open Payments shows 26 general payments to Dr. Ritchie from 10 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Bausch Health Americas, Inc. paid the most, $283.
General payments to Dr. Ritchie by program year, 2017 to 2024
Companies that paid Dr. Ritchie the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Marianne Theresa Ritchie'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Marianne Theresa Ritchie
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. Marianne Theresa Ritchie's NPI number?
Dr. Marianne Theresa Ritchie's NPI number is 1902984255. It was assigned on November 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marianne Theresa Ritchie?
Dr. Marianne Theresa Ritchie is a gastroenterologist in Pennsylvania. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Marianne Theresa Ritchie practice?
Dr. Ritchie practices at 132 S 10th St, Phila, PA 19107-5244. Dr. Ritchie's primary practice is Methodist Associates In Healthcare in Phila, Pennsylvania. Dmand AI also links Dr. Ritchie to 1 medical group.
What is Dr. Marianne Theresa Ritchie's office phone number?
The practice phone on file for Dr. Ritchie is (215) 955-8900.
What is Dr. Marianne Theresa Ritchie's medical license number?
Dr. Ritchie holds Pennsylvania license MD026713E.
Does Dr. Marianne Theresa Ritchie accept Medicare?
Yes. CMS data shows Dr. Ritchie billed Medicare for 51 services in 2020.
What services does Dr. Marianne Theresa Ritchie bill to Medicare?
In 2020, Dr. Ritchie's most billed Medicare services were office visit, established patient (99214) and office visit, new patient (99204).
What drugs does Dr. Marianne Theresa Ritchie prescribe most?
In 2021 Medicare Part D data, Dr. Ritchie's most prescribed drugs by claims were Famotidine and Omeprazole.
Has Dr. Marianne Theresa Ritchie received payments from drug or device companies?
CMS Open Payments shows $770 in general payments to Dr. Ritchie from 10 companies from 2017 to 2024. The largest total came from Bausch Health Americas, Inc.
How long has Dr. Marianne Theresa Ritchie been practicing?
Dr. Ritchie's NPI was assigned in 2006.
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