Dr. Mark Stephen Dennis, MD
- Medicare services, 2023
- 863
- Part D claims, 2024
- 166
- Industry payments
- $4,502
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 235 Saint Ann Dr, Mandeville, LA 70471
- Practice phone
- Call (985) 727-7275
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northshore Interventional Pain Management, Apmc - Mandeville
Surgical practice · Mandeville, Louisiana
Find Dr. Dennis' 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. Mark Stephen Dennis is an interventional pain medicine physician in Mandeville, Louisiana
Dr. Dennis practices at Northshore Interventional Pain Management, Apmc - Mandeville in Mandeville, Louisiana.
Dr. Dennis' NPI, 1801866215, was assigned on January 26, 2006. Dr. Dennis graduated from Louisiana State University School of Medicine in New Orleans in 1986. Dr. Dennis holds Louisiana license 019030.
- NPI
- 1801866215NPI Registry (opens in a new tab)
- NPI enumeration date
- January 26, 2006
- NPI status
- Active
- Practice phone
- (985) 727-7275
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Stephen Dennis practices at Northshore Interventional Pain Management, Apmc - Mandeville in Mandeville, Louisiana
Dr. Dennis' primary practice is Northshore Interventional Pain Management, Apmc - Mandeville, at 235 Saint Ann Dr, Mandeville, LA 70471. The practice phone is (985) 727-7275.
- Northshore Interventional Pain Management, Apmc - Mandeville235 Saint Ann Dr, Mandeville, LA 70471Phone(985) 727-7275
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Stephen Dennis is affiliated with 2 sites of care and 1 medical group
Dr. Dennis' primary practice is Northshore Interventional Pain Management, Apmc - Mandeville in Mandeville, Louisiana. The medical group on file is Premier Pain Center. Dmand AI also links Dr. Dennis to 1 more physician office, 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. Mark Stephen Dennis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dennis practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northshore Interventional Pain Management, Apmc - Mandeville | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark Stephen Dennis is one of 56 interventional pain medicine physicians in Louisiana
Interventional pain medicine is Dr. Dennis' primary specialty in the NPI Registry, under taxonomy code 208VP0014X. Dr. Dennis is licensed in Louisiana.
Specialties and state licenses
- Interventional pain medicine, LouisianaPrimary
Interventional pain medicine physicians near Dr. Dennis
Counts of interventional pain 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. Mark Stephen Dennis billed Medicare for 863 services in 2023
CMS data shows 863 Medicare services from Dr. Dennis across 13 procedure codes in 2023. Medicare paid $39,153 for them.
Dr. Dennis' Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 6892023: 38245%
- Drugs given in the office
- 2022: 6572023: 23764%
- Surgery
- 2022: 4702023: 19459%
- Tests and treatments
- 2022: 442023: 5014%
- Other services
- 2022: 9732023: 0100%
Where Dr. Dennis' Medicare services took place, 2023
- In an office68880%
- In a facility17520%
Dr. Dennis compared with the Louisiana median for interventional pain medicine physicians, 2023
- Dr. Dennis
- Louisiana median
- Medicare services
- 863vs 1,21829% below
- Part D claims
- 51vs 2,91298% below
Medians across 56 interventional pain medicine physicians in Louisiana with Dmand AI profiles that report each measure.
Dr. Dennis' 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.
Need commercial claims for Dr. Dennis?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dennis and other interventional pain medicine physicians in Louisiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Stephen Dennis' patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Dennis' median patient age at 69, with 58% women.
Dr. Dennis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women58%
- Men42%
Source: Dmand AI Patient Panel Data
Dr. Mark Stephen Dennis wrote 166 Medicare Part D claims in 2024
In 2024, Dr. Dennis wrote 166 Medicare Part D claims for 75 patients. 96% of them were for generic drugs. CMS names the drug for 51 of them, across 2 drugs with 11 or more claims each, at $698 in total drug cost. In 2023, CMS named 4,488 claims across 46 drugs.
Dr. Dennis' Part D claims by kind of drug, 2024
- Generic159 claims96%
- Brand-name and other7 claims4%
Dr. Dennis' 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. Dennis' Part D claims, 2024
- Antibiotics7%11 of 166 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: 4,4882024: 5199%
Drugs named by CMS: 2 in 2024, 46 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Mark Stephen Dennis received $4,502 in industry payments from 2016 to 2024
CMS Open Payments shows 353 general payments to Dr. Dennis from 38 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Collegium Pharmaceutical, Inc. paid the most, $529.
General payments to Dr. Dennis by program year, 2016 to 2024
Companies that paid Dr. Dennis the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Stephen Dennis graduated from Louisiana State University School of Medicine in New Orleans
Dr. Dennis graduated from Louisiana State University School of Medicine in New Orleans in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Stephen Dennis'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)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. Mark Stephen Dennis
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. Mark Stephen Dennis' NPI number?
Dr. Mark Stephen Dennis' NPI number is 1801866215. It was assigned on January 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Stephen Dennis?
Dr. Mark Stephen Dennis is an interventional pain medicine physician in Mandeville, Louisiana. The primary specialty in the NPI Registry is Interventional Pain Medicine Physician (taxonomy code 208VP0014X).
Where does Dr. Mark Stephen Dennis practice?
Dr. Dennis practices at 235 Saint Ann Dr, Mandeville, LA 70471. Dr. Dennis' primary practice is Northshore Interventional Pain Management, Apmc - Mandeville in Mandeville, Louisiana. Dmand AI also links Dr. Dennis to 1 physician office.
What is Dr. Mark Stephen Dennis' office phone number?
The practice phone on file for Dr. Dennis is (985) 727-7275.
What is Dr. Mark Stephen Dennis' medical license number?
Dr. Dennis holds Louisiana license 019030.
What medical group is Dr. Mark Stephen Dennis part of?
Dr. Dennis is linked to Premier Pain Center.
Does Dr. Mark Stephen Dennis accept Medicare?
Yes. CMS data shows Dr. Dennis billed Medicare for 863 services in 2023.
What services does Dr. Mark Stephen Dennis bill to Medicare?
In 2023, Dr. Dennis' most billed Medicare services were office visit, established patient (99213), injected or infused drug (J0702) and injected or infused drug (J1885).
Where did Dr. Mark Stephen Dennis go to medical school?
Dr. Dennis graduated from Louisiana State University School of Medicine in New Orleans in 1986.
What drugs does Dr. Mark Stephen Dennis prescribe most?
In 2024 Medicare Part D data, Dr. Dennis' most prescribed drugs by claims were Gabapentin and Duloxetine HCl.
Has Dr. Mark Stephen Dennis received payments from drug or device companies?
CMS Open Payments shows $4,502 in general payments to Dr. Dennis from 38 companies from 2016 to 2024. The largest total came from Collegium Pharmaceutical, Inc.
How long has Dr. Mark Stephen Dennis been practicing?
Dr. Dennis graduated from medical school in 1986, 40 years ago.
Selling to interventional pain medicine practices?
See interventional pain medicine physicians in Louisiana by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card