Dr. Marshall Jay Barker, DO
- Medicare services, 2023
- 91
- Medicare patients, 2026
- 23
- Part D claims, 2026
- 4,677
- Industry payments
- $872
- Affiliated sites
- 2
- Practice address
- Po Box 658 205 Mlk Jr Parkway, Snow Hill, NC 28580
- Practice phone
- Call (252) 747-8162
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Contentnea Health KBR
FQHC - Main Site · Snow Hill, North Carolina
Find Dr. Barker'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. Marshall Jay Barker is a general practice physician in Snow Hill, North Carolina
Dr. Barker practices at Contentnea Health KBR in Snow Hill, North Carolina.
Dr. Barker's NPI, 1083655005, was assigned on June 9, 2006. Dr. Barker holds North Carolina license 25205.
- NPI
- 1083655005NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880762541
- NPI enumeration date
- June 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (252) 747-8162
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marshall Jay Barker practices at 2 locations in Snow Hill, North Carolina
Dr. Barker's primary practice is Contentnea Health KBR, at Po Box 658 205 Mlk Jr Parkway, Snow Hill, NC 28580 in Greene County. The practice phone is (252) 747-8162. Dr. Barker also practices at Greene County Health Care Incorporated, 205 Martin Luther King Jr Pkwy, Snow Hill, NC 28580.
- Contentnea Health KBRPrimaryPo Box 658 205 Mlk Jr Parkway, Snow Hill, NC 28580 · Greene CountyPhone(252) 747-8162
- Greene County Health Care Incorporated205 Martin Luther King Jr Pkwy, Snow Hill, NC 28580 · Greene CountyPhone(252) 747-4199
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Marshall Jay Barker is affiliated with 2 sites of care and 1 medical group
Dr. Barker's primary practice is Contentnea Health KBR in Snow Hill, North Carolina. The medical group on file is Contentnea Health. Dmand AI also links Dr. Barker to 1 more physician office, named with a free account. Dr. Barker's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Marshall Jay Barker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barker practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Contentnea Health KBR | 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. Marshall Jay Barker is one of 196 general practice physicians in North Carolina
General practice is Dr. Barker's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Barker is licensed in North Carolina.
Specialties and state licenses
- General practice, North CarolinaPrimary
General practice physicians near Dr. Barker
Counts of general practice 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. Marshall Jay Barker billed Medicare for 91 services in 2023
CMS data shows 91 Medicare services from Dr. Barker across 3 procedure codes in 2023, for 23 Medicare patients. Medicare paid $514 for them. Every service was in an office.
Dr. Barker's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Lab and pathology
- 2022: 972023: 916%
Dr. Barker compared with the North Carolina median for general practice physicians, 2023
- Dr. Barker
- North Carolina median
- Medicare services
- 91vs 15441% below
- Medicare patients
- 23vs 9074% below
- Part D claims
- 4,249vs 11337.6 times
Medians across 116 general practice physicians in North Carolina with Dmand AI profiles that report each measure.
Dr. Barker'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. Barker and other general practice physicians in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marshall Jay Barker treated 23 Medicare patients in 2026, average age 66
CMS counts 23 Medicare patients who saw Dr. Barker in 2026. The largest group is 65 to 74, with 11 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Barker's median patient age at 62, with 63% women.
Dr. Barker's Medicare patients by age, 2026
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Barker's Medicare patients, 2026
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Barker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women63%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Marshall Jay Barker wrote 4,677 Medicare Part D claims in 2026
In 2026, Dr. Barker wrote 4,677 Medicare Part D claims for 172 patients. 88% of them were for generic drugs. CMS names the drug for 4,249 of them, across 109 drugs with 11 or more claims each, at $243,124 in total drug cost. In 2023, CMS named 4,691 claims across 118 drugs.
Dr. Barker's Part D claims by kind of drug, 2026
- Generic4,111 claims88%
- Brand-name549 claims12%
- Other17 claims0%
Dr. Barker'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.
Drug classes CMS tracks in Dr. Barker's Part D claims, 2026
- Opioids4%191 of 4,677 claims
- Antibiotics2%78 of 4,677 claims
- Antipsychotics, patients 65 and over1%47 of 4,677 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: 4,6912024: 4,2499%
Drugs named by CMS: 109 in 2024, 118 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), 2026 data
How Dr. Marshall Jay Barker takes part in Medicare
Dr. Barker 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. Marshall Jay Barker received $872 in industry payments from 2016 to 2024
CMS Open Payments shows 49 general payments to Dr. Barker from 24 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $93.
General payments to Dr. Barker by program year, 2016 to 2024
Companies that paid Dr. Barker the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Marshall Jay Barker'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 DataDmand AI Practice 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| 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. Marshall Jay Barker
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. Marshall Jay Barker's NPI number?
Dr. Marshall Jay Barker's NPI number is 1083655005. It was assigned on June 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marshall Jay Barker?
Dr. Marshall Jay Barker is a general practice physician in Snow Hill, North Carolina. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Marshall Jay Barker practice?
Dr. Barker practices at Po Box 658 205 Mlk Jr Parkway, Snow Hill, NC 28580. Dr. Barker also practices at 205 Martin Luther King Jr Pkwy, Snow Hill, NC 28580. Dr. Barker's primary practice is Contentnea Health KBR in Snow Hill, North Carolina. Dmand AI also links Dr. Barker to 1 physician office, and a free account names each one.
What is Dr. Marshall Jay Barker's office phone number?
The practice phone on file for Dr. Barker is (252) 747-8162. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Marshall Jay Barker's email address?
Dmand AI checks professional and personal email addresses for Dr. Barker through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Marshall Jay Barker's medical license number?
Dr. Barker holds North Carolina license 25205.
What medical group is Dr. Marshall Jay Barker part of?
Dr. Barker is linked to Contentnea Health.
Who employs Dr. Marshall Jay Barker?
Dmand AI has Dr. Barker's employer on file: a community health center (fqhc). The organization's name is available with a free Dmand AI account.
Who does Dr. Marshall Jay Barker practice with?
Dmand AI links 38 HCPs to Dr. Barker's primary medical group, 1 of them general practice physician. A free account lists them, with verified contacts.
Does Dr. Marshall Jay Barker accept Medicare?
Yes. CMS data shows Dr. Barker billed Medicare for 91 services in 2023, and Dr. Barker accepts Medicare assignment.
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How many Medicare patients does Dr. Marshall Jay Barker see?
CMS counts 23 Medicare patients who saw Dr. Barker in 2026, with an average age of 66.
What services does Dr. Marshall Jay Barker bill to Medicare?
In 2023, Dr. Barker's most billed Medicare services were lab and pathology test (82962), lab and pathology test (83036) and lab and pathology test (82465).
What drugs does Dr. Marshall Jay Barker prescribe most?
In 2024 Medicare Part D data, Dr. Barker's most prescribed drugs by claims were Losartan Potassium, Amlodipine Besylate and Metoprolol Succinate.
Has Dr. Marshall Jay Barker received payments from drug or device companies?
CMS Open Payments shows $872 in general payments to Dr. Barker from 24 companies from 2016 to 2024. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Marshall Jay Barker been practicing?
Dr. Barker graduated from medical school in 1980, 46 years ago.
What EHR does Dr. Marshall Jay Barker's practice use?
Dmand AI tracks the EHR system at Contentnea Health KBR and at 1 more affiliated site. The vendor and product are available with a free Dmand AI account.
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