Dr. Gregory McNamara, MD
- Medicare services, 2020
- 54
- Part D claims, 2024
- 44
- Industry payments
- $121,602
- Affiliated sites
- 5
- Medical groups
- 5
- Practice address
- 4800 Belfort Rd, Jacksonville, FL 32256
- Practice phone
- Call (904) 265-4801
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Jacksonville Center for Endoscopy - Southside
Jacksonville, Florida
Find Dr. McNamara'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. Gregory McNamara is an interventional pain medicine physician in Jacksonville, Florida
Dr. McNamara practices at Jacksonville Center for Endoscopy - Southside in Jacksonville, Florida.
Dr. McNamara's NPI, 1720051832, was assigned on February 9, 2006. Dr. McNamara graduated from San Juan Bautista School of Medicine in 1982. Dr. McNamara holds Florida license ME89083.
- NPI
- 1720051832NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496796799
- NPI enumeration date
- February 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (904) 265-4801
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory McNamara practices at Jacksonville Center for Endoscopy - Southside in Jacksonville, Florida
Dr. McNamara's primary practice is Jacksonville Center for Endoscopy - Southside, at 4800 Belfort Rd, Jacksonville, FL 32256 in Duval County. The practice phone is (904) 265-4801.
- Jacksonville Center for Endoscopy - Southside4800 Belfort Rd, Jacksonville, FL 32256 · Duval CountyPhone(904) 265-4801
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory McNamara is affiliated with 6 sites of care and 5 medical groups
Dr. McNamara's primary practice is Jacksonville Center for Endoscopy - Southside in Jacksonville, Florida. The medical group on file is Riverside Surgical Center. Dmand AI also links Dr. McNamara to 4 more group practices and clinics, 4 medical groups and 1 ambulatory surgery center, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory McNamara's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McNamara practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jacksonville Center for Endoscopy - Southside | Available with a free account |
| +5 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory McNamara is one of 260 interventional pain medicine physicians in Florida
Interventional pain medicine is Dr. McNamara's primary specialty in the NPI Registry, under taxonomy code 208VP0014X. Dr. McNamara is board certified in internal medicine by the American Association of Physician Specialists. Dmand AI has Dr. McNamara's licenses on file in 15 states: Florida, Maine, Georgia, Texas, Arizona, Colorado, South Carolina, Arkansas, New Mexico, Pennsylvania, Tennessee, Virginia, Kentucky, New York and Rhode Island.
Specialties and state licenses
- Interventional pain medicine, FloridaPrimary
- Maine license
- Georgia license
- Texas license
- Arizona license
- Colorado license
- South Carolina license
- Arkansas license
- New Mexico license
- Pennsylvania license
- Tennessee license
- Virginia license
- Kentucky license
- New York license
- Rhode Island license
Interventional pain medicine physicians near Dr. McNamara
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. Gregory McNamara billed Medicare for 54 services in 2020
CMS data shows 54 Medicare services from Dr. McNamara across 2 procedure codes in 2020, all of them office visits. Medicare paid $3,100 for them. Every service was in an office.
Dr. McNamara's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 922020: 5441%
Dr. McNamara compared with the Florida median for interventional pain medicine physicians, 2020
- Dr. McNamara
- Florida median
- Medicare services
- 54vs 2,34998% below
- Part D claims
- 11vs 1,76599% below
Medians across 255 interventional pain medicine physicians in Florida with Dmand AI profiles that report each measure.
Dr. McNamara'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. McNamara and other interventional pain medicine physicians in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory McNamara's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. McNamara's median patient age at 69, with 48% women.
Dr. McNamara's 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
- Women48%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Gregory McNamara wrote 44 Medicare Part D claims in 2024
In 2024, Dr. McNamara wrote 44 Medicare Part D claims. 98% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $45 in total drug cost. In 2020, CMS named 133 claims across 2 drugs.
Dr. McNamara's Part D claims by kind of drug, 2024
- Generic43 claims98%
- Brand-name and other1 claims2%
Dr. McNamara's most prescribed drugs by claims, 2022
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. McNamara's Part D claims, 2024
- Antibiotics34%15 of 44 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, 2020 to 2022
- 2020
- 2022
- Claims for drugs CMS names
- 2020: 1332022: 1192%
Drugs named by CMS: 1 in 2022, 2 in 2020.
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
How Dr. Gregory McNamara takes part in Medicare
Dr. McNamara accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gregory McNamara received $121,602 in industry payments from 2016 to 2025
CMS Open Payments shows 84 general payments to Dr. McNamara from 6 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 99% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $121,196.
General payments to Dr. McNamara by program year, 2016 to 2025
General payments to Dr. McNamara by kind, 2016 to 2025
- Consulting fees$120,97999%
- Food and beverage$4060%
- Travel and lodging$2170%
Companies that paid Dr. McNamara 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. Gregory McNamara graduated from San Juan Bautista School of Medicine
Dr. McNamara graduated from San Juan Bautista School of Medicine in 1982.
- Medical school
- Board certified in internal medicine
- Board certified in anesthesiology
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory McNamara'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Gregory McNamara
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. Gregory McNamara's NPI number?
Dr. Gregory McNamara's NPI number is 1720051832. It was assigned on February 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory McNamara?
Dr. Gregory McNamara is an interventional pain medicine physician in Jacksonville, Florida. The primary specialty in the NPI Registry is Interventional Pain Medicine Physician (taxonomy code 208VP0014X).
Where does Dr. Gregory McNamara practice?
Dr. McNamara practices at 4800 Belfort Rd, Jacksonville, FL 32256. Dr. McNamara's primary practice is Jacksonville Center for Endoscopy - Southside in Jacksonville, Florida. Dmand AI also links Dr. McNamara to 4 group practices and clinics, 4 medical groups and 1 ambulatory surgery center.
What is Dr. Gregory McNamara's office phone number?
The practice phone on file for Dr. McNamara is (904) 265-4801.
What is Dr. Gregory McNamara's medical license number?
Dr. McNamara holds Florida license ME89083, one of the licenses on file in 15 states.
Which states has Dr. Gregory McNamara been licensed in?
Dmand AI has state licenses on file for Dr. McNamara in Florida (2003 to 2026), Maine (since 2017), Georgia (1983 to 2019), Texas (2013 to 2018), Arizona (2009 to 2017), Colorado (1991 to 2017), South Carolina (2010 to 2017), Arkansas (1989 to 2016), New Mexico (2009 to 2016), Pennsylvania (2008 to 2016), Tennessee (1990 to 2016), Virginia (2010 to 2016), Kentucky (2009 to 2015), New York (2001 to 2012) and Rhode Island (2010 to 2012).
What medical group is Dr. Gregory McNamara part of?
Dr. McNamara is linked to Riverside Surgical Center. Dmand AI links Dr. McNamara to 4 more medical groups.
Does Dr. Gregory McNamara accept Medicare?
Yes. CMS data shows Dr. McNamara billed Medicare for 54 services in 2020, and Dr. McNamara accepts Medicare assignment.
Is Dr. Gregory McNamara board certified?
Yes. Dr. McNamara is board certified in internal medicine by the American Association of Physician Specialists.
What services does Dr. Gregory McNamara bill to Medicare?
In 2020, Dr. McNamara's most billed Medicare services were office visit, established patient (99214) and office visit, established patient (99213).
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Where did Dr. Gregory McNamara go to medical school?
Dr. McNamara graduated from San Juan Bautista School of Medicine in 1982.
What drugs does Dr. Gregory McNamara prescribe most?
In 2022 Medicare Part D data, Dr. McNamara's most prescribed drugs by claims were Azithromycin.
Has Dr. Gregory McNamara received payments from drug or device companies?
CMS Open Payments shows $121,602 in general payments to Dr. McNamara from 6 companies from 2016 to 2025. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. Gregory McNamara been practicing?
Dr. McNamara graduated from medical school in 1982, 44 years ago.
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