Dr. Douglas F. Marks Jr., MD
- Medicare services, 2024
- 1,380
- Medicare patients, 2024
- 388
- Part D claims, 2024
- 1,192
- Hospital affiliations
- 2
- Industry payments
- $2,184
- Practice address
- 1 Elliot Way, Manchester, NH 03103
- Practice phone
- Call (603) 669-5300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Marks' professional email, personal email and mobile number
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Dr. Douglas F. Marks Jr. is a rheumatologist in Manchester, New Hampshire
Dr. Marks practices at Elliot Hospital in Manchester, New Hampshire, part of SolutionHealth.
Dr. Marks' NPI, 1013924240, was assigned on August 1, 2006. Dr. Marks graduated from University of Massachusetts Medical School in 2001. Dr. Marks holds New Hampshire license 12110.
- NPI
- 1013924240NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416957238
- NPI enumeration date
- August 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (603) 669-5300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Douglas F. Marks Jr. practices at Elliot Hospital in Manchester, New Hampshire
Dr. Marks' primary practice is Elliot Hospital, at 1 Elliot Way, Manchester, NH 03103 in Hillsborough County. The practice phone is (603) 669-5300.
- Elliot Hospital1 Elliot Way, Manchester, NH 03103 · Hillsborough CountyPhone(603) 669-5300
Source: Dmand AI Affiliation Data
Dr. Douglas F. Marks Jr. is affiliated with 2 sites of care and 1 medical group
Dr. Marks' primary practice is Elliot Hospital in Manchester, New Hampshire, part of SolutionHealth. The medical group on file is Elliot Pediatric Rehabilitation Services. Dmand AI also links Dr. Marks to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Douglas F. Marks Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marks practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Elliot Hospital | 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. Douglas F. Marks Jr. is one of 40 rheumatologists in New Hampshire
Rheumatology is Dr. Marks' primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Marks is licensed in New Hampshire.
Specialties and state licenses
- Rheumatology, New HampshirePrimary
Rheumatologists near Dr. Marks
Counts of rheumatologists 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. Douglas F. Marks Jr. billed Medicare for 1,380 services in 2024
CMS data shows 1,380 Medicare services from Dr. Marks across 5 procedure codes in 2024, for 388 Medicare patients. Medicare paid $65,555 for them. Every service was in an office.
Dr. Marks' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7582024: 7671%
- Other services
- 2023: 02024: 613
Dr. Marks compared with the New Hampshire median for rheumatologists, 2024
- Dr. Marks
- New Hampshire median
- Medicare services
- 1,380vs 5642.4 times
- Medicare patients
- 388vs 21977% above
- Part D claims
- 1,104vs 1,00510% above
Medians across 42 rheumatologists in New Hampshire with Dmand AI profiles that report each measure.
Dr. Marks' most billed Medicare procedure codes, 2024
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. Marks and other rheumatologists in New Hampshire.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Douglas F. Marks Jr. treated 388 Medicare patients in 2024, average age 75
CMS counts 388 Medicare patients who saw Dr. Marks in 2024. The largest group is 65 to 74, with 183 patients. 75% of them have arthritis, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Marks' median patient age at 71, with 61% women.
Dr. Marks' Medicare patients by age, 2024
Dr. Marks' Medicare patients by sex, 2024
- Women26167%
- Men12733%
Chronic conditions among Dr. Marks' Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure64%
- Osteoporosis51%
- Mood disorders24%
- Anxiety23%
- Depression22%
- Chronic kidney disease17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marks' 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
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Douglas F. Marks Jr. wrote 1,192 Medicare Part D claims in 2024
In 2024, Dr. Marks wrote 1,192 Medicare Part D claims for 274 patients. 89% of them were for generic drugs. CMS names the drug for 1,104 of them, across 15 drugs with 11 or more claims each, at $461,124 in total drug cost. In 2023, CMS named 1,131 claims across 16 drugs.
Dr. Marks' Part D claims by kind of drug, 2024
- Generic1,060 claims89%
- Brand-name and other132 claims11%
Dr. Marks' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1312024: 1,1042%
Drugs named by CMS: 15 in 2024, 16 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
Dr. Douglas F. Marks Jr. offers telehealth to Medicare patients
Dr. Marks accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Marks as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Douglas F. Marks Jr. received $2,184 in industry payments from 2016 to 2024
CMS Open Payments shows 95 general payments to Dr. Marks from 19 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 95% of the total. Abbvie Inc. paid the most, $726.
General payments to Dr. Marks by program year, 2016 to 2024
General payments to Dr. Marks by kind, 2016 to 2024
- Food and beverage$2,08095%
- Education$1045%
Companies that paid Dr. Marks 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. Douglas F. Marks Jr. graduated from University of Massachusetts Medical School
Dr. Marks graduated from University of Massachusetts Medical School in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Douglas F. Marks Jr.'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 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) |
| 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. Douglas F. Marks Jr.
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. Douglas F. Marks Jr.'s NPI number?
Dr. Douglas F. Marks Jr.'s NPI number is 1013924240. It was assigned on August 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas F. Marks Jr.?
Dr. Douglas F. Marks Jr. is a rheumatologist in Manchester, New Hampshire. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Douglas F. Marks Jr. practice?
Dr. Marks practices at 1 Elliot Way, Manchester, NH 03103. Dr. Marks' primary practice is Elliot Hospital in Manchester, New Hampshire, part of SolutionHealth. Dmand AI also links Dr. Marks to 1 hospital.
What is Dr. Douglas F. Marks Jr.'s office phone number?
The practice phone on file for Dr. Marks is (603) 669-5300.
What is Dr. Douglas F. Marks Jr.'s medical license number?
Dr. Marks holds New Hampshire license 12110.
Which hospitals is Dr. Douglas F. Marks Jr. affiliated with?
Dr. Marks practices at Elliot Hospital in Manchester, New Hampshire. Dmand AI links Dr. Marks to 1 more hospital.
What medical group is Dr. Douglas F. Marks Jr. part of?
Dr. Marks is linked to Elliot Pediatric Rehabilitation Services.
Does Dr. Douglas F. Marks Jr. accept Medicare?
Yes. CMS data shows Dr. Marks billed Medicare for 1,380 services in 2024, and Dr. Marks accepts Medicare assignment.
Does Dr. Douglas F. Marks Jr. offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Marks as offering telehealth services.
How many Medicare patients does Dr. Douglas F. Marks Jr. see?
CMS counts 388 Medicare patients who saw Dr. Marks in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Douglas F. Marks Jr. bill to Medicare?
In 2024, Dr. Marks' most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Douglas F. Marks Jr. go to medical school?
Dr. Marks graduated from University of Massachusetts Medical School in 2001.
What drugs does Dr. Douglas F. Marks Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Marks' most prescribed drugs by claims were Methotrexate, Allopurinol and Prednisone.
Has Dr. Douglas F. Marks Jr. received payments from drug or device companies?
CMS Open Payments shows $2,184 in general payments to Dr. Marks from 19 companies from 2016 to 2024. The largest total came from Abbvie Inc.
How long has Dr. Douglas F. Marks Jr. been practicing?
Dr. Marks graduated from medical school in 2001, 25 years ago.
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