Dr. Marc Allen, DO
- Medicare services, 2024
- 12,600
- Medicare patients, 2024
- 597
- Part D claims, 2024
- 8,661
- Hospital affiliations
- 1
- Industry payments
- $292
- Practice address
- 1045 W Jericho Turnpike, Smithtown, NY 11787
- Practice phone
- Call (631) 543-8844
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dr Marc Allen Medical
Smithtown, New York
Find Dr. Allen'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. Marc Allen is an internist in Smithtown, New York
Dr. Allen practices at Dr Marc Allen Medical in Smithtown, New York.
Dr. Allen's NPI, 1356309892, was assigned on May 3, 2006. Dr. Allen graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury in 1999. Dr. Allen holds New York license 2238341.
- NPI
- 1356309892NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799750774
- NPI enumeration date
- May 3, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (631) 543-8844
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marc Allen practices at Dr Marc Allen Medical in Smithtown, New York
Dr. Allen's primary practice is Dr Marc Allen Medical, at 1045 W Jericho Turnpike, Smithtown, NY 11787 in Suffolk County. The practice phone is (631) 543-8844.
- Dr Marc Allen Medical1045 W Jericho Turnpike, Smithtown, NY 11787 · Suffolk CountyPhone(631) 543-8844
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Marc Allen is affiliated with 7 sites of care and 1 medical group
Dr. Allen's primary practice is Dr Marc Allen Medical in Smithtown, New York. Dr. Allen is also affiliated with Good Samaritan University Hospital St. Charles Campus. The medical group on file is Allen Medical Associates. Dmand AI also links Dr. Allen to 4 more home health agencies and 1 group practice or clinic, 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. Marc Allen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Allen practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr Marc Allen Medical | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marc Allen is one of 9,643 internists in New York
Internal medicine is Dr. Allen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Allen is board certified in internal medicine by the American Board of Internal Medicine. Dr. Allen is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Clinical focus
Dmand AI lists acid reflux, acute mini-stroke (TIA), acute sinusitis, acute skin infection, aneurysm, anxiety, aortic atherosclerois and arteritis among the conditions Dr. Allen treats.
Internists near Dr. Allen
Counts of internists 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. Marc Allen billed Medicare for 12,600 services in 2024
CMS data shows 12,600 Medicare services from Dr. Allen across 55 procedure codes in 2024, for 597 Medicare patients. Medicare paid $825,983 for them. Every service was in an office.
Dr. Allen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7,9652024: 6,21922%
- Tests and treatments
- 2023: 4,0962024: 2,80332%
- Other services
- 2023: 1,7832024: 1,7641%
- Lab and pathology
- 2023: 1,3382024: 1,05321%
- Surgery
- 2023: 1,4912024: 50266%
- Imaging
- 2023: 2772024: 22618%
- Drugs given in the office
- 2023: 392024: 3315%
Dr. Allen compared with the New York median for internists, 2024
- Dr. Allen
- New York median
- Medicare services
- 12,600vs 42629.6 times
- Medicare patients
- 597vs 1583.8 times
- Part D claims
- 8,086vs 62213.0 times
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. Allen's 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.
Need commercial claims for Dr. Allen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Allen and other internists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marc Allen treated 597 Medicare patients in 2024, average age 74
CMS counts 597 Medicare patients who saw Dr. Allen in 2024. The largest group is 65 to 74, with 260 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Allen's median patient age at 59, with 46% women.
Dr. Allen's Medicare patients by age, 2024
Dr. Allen's Medicare patients by sex, 2024
- Women30852%
- Men28948%
Chronic conditions among Dr. Allen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis45%
- Ischemic heart disease32%
- Anxiety25%
- Diabetes25%
- Mood disorders18%
- Osteoporosis17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Allen'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
- Women46%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marc Allen wrote 8,661 Medicare Part D claims in 2024
In 2024, Dr. Allen wrote 8,661 Medicare Part D claims for 741 patients. 90% of them were for generic drugs. CMS names the drug for 8,086 of them, across 127 drugs with 11 or more claims each, at $405,637 in total drug cost. In 2023, CMS named 7,879 claims across 133 drugs.
Dr. Allen's Part D claims by kind of drug, 2024
- Generic7,769 claims90%
- Brand-name871 claims10%
- Other21 claims0%
Dr. Allen'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. Allen's Part D claims, 2024
- Opioids0%18 of 8,661 claims
- Antibiotics5%415 of 8,661 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: 7,8792024: 8,0863%
Drugs named by CMS: 127 in 2024, 133 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. Marc Allen offers telehealth to Medicare patients
Dr. Allen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Allen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Marc Allen received $292 in industry payments from 2016 to 2025
CMS Open Payments shows 14 general payments to Dr. Allen from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 93% of the total. GlaxoSmithKline, LLC. paid the most, $158.
General payments to Dr. Allen by program year, 2016 to 2025
General payments to Dr. Allen by kind, 2016 to 2025
- Food and beverage$27193%
- Education$217%
Companies that paid Dr. Allen 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. Marc Allen has 1 award and honors on record
Dmand AI lists 1 award for Dr. Allen, most recently CMS Stage 1 2012 in 2018.
Awards and honors for Dr. Allen
- 2018
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Marc Allen graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury
Dr. Allen graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury in 1999. Dr. Allen is a member of ACP, American medical association and AMA.
- Medical school
- Board certified in internal medicine
- Board certified in 2002 - 2027
Source: Dmand AI Professional Profile Data
Dr. Marc Allen accepts plans from 13 insurance carriers
Dr. Allen is in network with 13 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Humana
- MVP Health Care
- +5 more carriersWith a free account
Plan types Dr. Allen accepts, by number of carriers
- PPO9
- Medicare8
- EPO4
- HMO4
- POS4
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Marc Allen'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 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Marc Allen
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. Marc Allen's NPI number?
Dr. Marc Allen's NPI number is 1356309892. It was assigned on May 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marc Allen?
Dr. Marc Allen is an internist in Smithtown, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Marc Allen practice?
Dr. Allen practices at 1045 W Jericho Turnpike, Smithtown, NY 11787. Dr. Allen's primary practice is Dr Marc Allen Medical in Smithtown, New York. Dmand AI also links Dr. Allen to 4 home health agencies and 1 group practice or clinic.
What is Dr. Marc Allen's office phone number?
The practice phone on file for Dr. Allen is (631) 543-8844.
What is Dr. Marc Allen's medical license number?
Dr. Allen holds New York license 2238341.
Which hospitals is Dr. Marc Allen affiliated with?
Dr. Allen is affiliated with Good Samaritan University Hospital St. Charles Campus.
What medical group is Dr. Marc Allen part of?
Dr. Allen is linked to Allen Medical Associates.
Does Dr. Marc Allen accept Medicare?
Yes. CMS data shows Dr. Allen billed Medicare for 12,600 services in 2024, and Dr. Allen accepts Medicare assignment.
Does Dr. Marc Allen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Allen as offering telehealth services.
How many Medicare patients does Dr. Marc Allen see?
CMS counts 597 Medicare patients who saw Dr. Allen in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
Is Dr. Marc Allen board certified?
Yes. Dr. Allen is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Marc Allen bill to Medicare?
In 2024, Dr. Allen's most billed Medicare services were care management and other visits (99490), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Marc Allen go to medical school?
Dr. Allen graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury in 1999.
What drugs does Dr. Marc Allen prescribe most?
In 2024 Medicare Part D data, Dr. Allen's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
Has Dr. Marc Allen received payments from drug or device companies?
CMS Open Payments shows $292 in general payments to Dr. Allen from 8 companies from 2016 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Marc Allen been practicing?
Dr. Allen graduated from medical school in 1999, 27 years ago.
What insurance does Dr. Marc Allen accept?
Dr. Allen is in network with 13 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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