Dr. Marcus Henry Harding, MD, MPH
- Medicare services, 2020
- 69
- Part D claims, 2020
- 11
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 1180 Newfield Ave, Stamford, CT 06905-1409
- Practice phone
- Call (314) 888-5233
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mycatholicdoctor - Stamford
Primary care practice · Stamford, Connecticut
Find Dr. Harding'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. Marcus Henry Harding is an emergency medicine physician in New Canaan, Connecticut
Dr. Harding practices at Mycatholicdoctor - Stamford in Stamford, Connecticut.
Dr. Harding's NPI, 1679664189, was assigned on September 28, 2006. Dr. Harding graduated from UMass Chan Medical School in 1987. Dr. Harding holds Massachusetts license 71134.
- NPI
- 1679664189NPI Registry (opens in a new tab)
- NPI enumeration date
- September 28, 2006
- NPI status
- Active
- Practice phone
- (314) 888-5233
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marcus Henry Harding practices in Stamford and New Canaan
Dr. Harding's primary practice is Mycatholicdoctor - Stamford, at 1180 Newfield Ave, Stamford, CT 06905-1409. The practice phone is (314) 888-5233. The NPI Registry lists Dr. Harding's practice address as 711 Silvermine Rd, New Canaan, CT 06840.
- Mycatholicdoctor - StamfordPrimary1180 Newfield Ave, Stamford, CT 06905-1409Phone(314) 888-5233
- NPI Registry address711 Silvermine Rd, New Canaan, CT 06840 · Western Ct CountyPhone(314) 888-5233
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Marcus Henry Harding is affiliated with 1 site of care and 1 medical group
Dr. Harding's primary practice is Mycatholicdoctor - Stamford in Stamford, Connecticut. The medical group on file is MyCatholicDoctor.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Marcus Henry Harding's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harding practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mycatholicdoctor - Stamford | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marcus Henry Harding is one of 683 emergency medicine physicians in Connecticut
Emergency medicine is Dr. Harding's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Harding is licensed in Massachusetts.
Specialties and state licenses
- Emergency medicine, MassachusettsPrimary
Emergency medicine physicians near Dr. Harding
Counts of emergency 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. Marcus Henry Harding billed Medicare for 69 services in 2020
CMS data shows 69 Medicare services from Dr. Harding across 3 procedure codes in 2020. Medicare paid $4,136 for them. Every service was in an office.
Dr. Harding's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 3272020: 4885%
- Lab and pathology
- 2019: 632020: 2167%
- Imaging
- 2019: 212020: 0100%
Dr. Harding compared with the Connecticut median for emergency medicine physicians, 2020
- Dr. Harding
- Connecticut median
- Medicare services
- 69vs 24372% below
- Part D claims
- 11vs 4877% below
Medians across 695 emergency medicine physicians in Connecticut with Dmand AI profiles that report each measure.
Dr. Harding'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. Harding and other emergency medicine physicians in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marcus Henry Harding's patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Dr. Harding's median patient age at 59, with 100% women.
Dr. Harding'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
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Marcus Henry Harding wrote 11 Medicare Part D claims in 2020
In 2020, Dr. Harding wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $59 in total drug cost. In 2019, CMS named 229 claims across 9 drugs.
Dr. Harding's most prescribed drugs by claims, 2020
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, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 2292020: 1195%
Drugs named by CMS: 1 in 2020, 9 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Marcus Henry Harding graduated from UMass Chan Medical School
Dr. Harding graduated from UMass Chan Medical School in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Marcus Henry Harding'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| 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) |
| 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. Marcus Henry Harding
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. Marcus Henry Harding's NPI number?
Dr. Marcus Henry Harding's NPI number is 1679664189. It was assigned on September 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marcus Henry Harding?
Dr. Marcus Henry Harding is an emergency medicine physician in New Canaan, Connecticut. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Marcus Henry Harding practice?
Dr. Harding practices at 1180 Newfield Ave, Stamford, CT 06905-1409. Dr. Harding also practices at 711 Silvermine Rd, New Canaan, CT 06840. Dr. Harding's primary practice is Mycatholicdoctor - Stamford in Stamford, Connecticut.
What is Dr. Marcus Henry Harding's office phone number?
The practice phone on file for Dr. Harding is (314) 888-5233.
What is Dr. Marcus Henry Harding's medical license number?
Dr. Harding holds Massachusetts license 71134.
What medical group is Dr. Marcus Henry Harding part of?
Dr. Harding is linked to MyCatholicDoctor.
Does Dr. Marcus Henry Harding accept Medicare?
Yes. CMS data shows Dr. Harding billed Medicare for 69 services in 2020.
What services does Dr. Marcus Henry Harding bill to Medicare?
In 2020, Dr. Harding's most billed Medicare services were office visit, established patient (99214), lab and pathology test (87804) and office visit, new patient (99204).
Where did Dr. Marcus Henry Harding go to medical school?
Dr. Harding graduated from UMass Chan Medical School in 1987.
What drugs does Dr. Marcus Henry Harding prescribe most?
In 2020 Medicare Part D data, Dr. Harding's most prescribed drugs by claims were Azithromycin.
How long has Dr. Marcus Henry Harding been practicing?
Dr. Harding graduated from medical school in 1987, 39 years ago.
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