Dr. Thomas E. Maslen, MD

  • Greenbelt, MD
  • Internist
NPI1699742791PAC ID5294889861
Medicare services, 2024
3,708
Medicare patients, 2024
643
Part D claims, 2024
7,989
Industry payments
$510
Affiliated sites
9
Practice address
7525 Greenway Center Drive, Suite #112, Greenbelt, MD 20770
Practice phone
Call (301) 345-4087
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Total Foot Care

Surgery Center - Medicare-Certified · Greenbelt, Maryland

See all 11 affiliations

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Dr. Thomas E. Maslen is an internist in Greenbelt, Maryland

Dr. Maslen practices at Total Foot Care in Greenbelt, Maryland.

Dr. Maslen's NPI, 1699742791, was assigned on March 7, 2006. Dr. Maslen graduated from University of Maryland School of Medicine in 1997. Dr. Maslen holds Maryland license D55559.

NPI and contact details
Medicare PAC ID
5294889861
NPI enumeration date
March 7, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(301) 345-4087
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
55
Medical school graduation
1997

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Thomas E. Maslen practices at Total Foot Care in Greenbelt, Maryland

Dr. Maslen's primary practice is Total Foot Care, at 7525 Greenway Center Drive, Suite #112, Greenbelt, MD 20770. The practice phone is (301) 345-4087.

  • Total Foot Care
    7525 Greenway Center Drive, Suite #112, Greenbelt, MD 20770Phone(301) 345-4087

Source: Dmand AI Affiliation Data

Dr. Thomas E. Maslen is affiliated with 9 sites of care and 2 medical groups

Dr. Maslen's primary practice is Total Foot Care in Greenbelt, Maryland. The medical group on file is Privia Medical Group. Dmand AI also links Dr. Maslen to 5 more home health agencies, 2 group practices and clinics, 1 physician office and 1 medical group, each named with a free account.

See all 11 affiliations for Dr. Maslen

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Thomas E. Maslen's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maslen practices, 9 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Total Foot CareAvailable with a free account
+8 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Thomas E. Maslen is one of 3,320 internists in Maryland

Internal medicine is Dr. Maslen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Maslen is licensed in Maryland.

Specialties and state licenses

  • Internal medicine, MarylandPrimaryLicense D55559 · taxonomy 207R00000X

Internists near Dr. Maslen

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. Thomas E. Maslen billed Medicare for 3,708 services in 2024

CMS data shows 3,708 Medicare services from Dr. Maslen across 19 procedure codes in 2024, for 643 Medicare patients. Medicare paid $220,470 for them. Every service was in an office.

Medicare services, 20243,708
Medicare patients643
Paid by Medicare$220,470
Procedure codes19

Dr. Maslen's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,9242024: 1,7559%
Other services
2023: 7192024: 99238%
Surgery
2023: 8302024: 72812%
Tests and treatments
2023: 2142024: 2339%

Dr. Maslen compared with the Maryland median for internists, 2024

  • Dr. Maslen
  • Maryland median
Medicare services
3,708vs 6565.7 times
Medicare patients
643vs 2512.6 times
Part D claims
7,189vs 30923.3 times

Medians across 3,215 internists in Maryland with Dmand AI profiles that report each measure.

Dr. Maslen'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.

See all procedures by Dr. Maslen

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Thomas E. Maslen treated 643 Medicare patients in 2024, average age 76

CMS counts 643 Medicare patients who saw Dr. Maslen in 2024. The largest group is 65 to 74, with 281 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 2% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Maslen's median patient age at 69, with 50% women.

Medicare patients, 2024643
Average age76
Average risk score1.23
Also on Medicaid2%

Dr. Maslen's Medicare patients by age, 2024

Dr. Maslen's Medicare patients by sex, 2024

  • Women36156%
  • Men28244%

Chronic conditions among Dr. Maslen's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure73%
  3. Arthritis39%
  4. Chronic kidney disease36%
  5. Diabetes32%
  6. Mood disorders27%
  7. Depression26%
  8. Ischemic heart disease19%

Share of Medicare patients with each condition. A patient can have several.

Dr. Maslen'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

  • Women50%
  • Men49%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Thomas E. Maslen wrote 7,989 Medicare Part D claims in 2024

In 2024, Dr. Maslen wrote 7,989 Medicare Part D claims for 615 patients. 89% of them were for generic drugs. CMS names the drug for 7,189 of them, across 148 drugs with 11 or more claims each, at $805,679 in total drug cost. In 2023, CMS named 5,005 claims across 117 drugs.

Part D claims, 20247,989
Drugs named by CMS148
Total drug cost$805,679
Part D patients615

Dr. Maslen's Part D claims by kind of drug, 2024

  • Generic7,124 claims89%
  • Brand-name822 claims10%
  • Other43 claims1%

Dr. Maslen'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. Maslen's Part D claims, 2024

  • Opioids2%184 of 7,989 claims
  • Antibiotics5%404 of 7,989 claims
  • Antipsychotics, patients 65 and over0%13 of 7,989 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: 5,0052024: 7,18944%

Drugs named by CMS: 148 in 2024, 117 in 2023.

See all prescribing by Dr. Maslen

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. Thomas E. Maslen offers telehealth to Medicare patients

Dr. Maslen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Maslen as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)

Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Thomas E. Maslen received $510 in industry payments from 2016 to 2024

CMS Open Payments shows 25 general payments to Dr. Maslen from 9 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $209.

General payments to Dr. Maslen by program year, 2016 to 2024

Companies that paid Dr. Maslen the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Maslen

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Thomas E. Maslen graduated from University of Maryland School of Medicine

Dr. Maslen graduated from University of Maryland School of Medicine in 1997.

  1. Medical schoolUniversity of Maryland School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Thomas E. Maslen's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Thomas E. Maslen

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. Thomas E. Maslen's NPI number?

Dr. Thomas E. Maslen's NPI number is 1699742791. It was assigned on March 7, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Thomas E. Maslen?

Dr. Thomas E. Maslen is an internist in Greenbelt, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Thomas E. Maslen practice?

Dr. Maslen practices at 7525 Greenway Center Drive, Suite #112, Greenbelt, MD 20770. Dr. Maslen's primary practice is Total Foot Care in Greenbelt, Maryland. Dmand AI also links Dr. Maslen to 5 home health agencies, 2 group practices and clinics, 1 physician office and 1 medical group.

What is Dr. Thomas E. Maslen's office phone number?

The practice phone on file for Dr. Maslen is (301) 345-4087.

What is Dr. Thomas E. Maslen's medical license number?

Dr. Maslen holds Maryland license D55559.

What medical group is Dr. Thomas E. Maslen part of?

Dr. Maslen is linked to Privia Medical Group. Dmand AI links Dr. Maslen to 1 more medical group.

Does Dr. Thomas E. Maslen accept Medicare?

Yes. CMS data shows Dr. Maslen billed Medicare for 3,708 services in 2024, and Dr. Maslen accepts Medicare assignment.

Does Dr. Thomas E. Maslen offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Maslen as offering telehealth services.

How many Medicare patients does Dr. Thomas E. Maslen see?

CMS counts 643 Medicare patients who saw Dr. Maslen in 2024, with an average age of 76.

What services does Dr. Thomas E. Maslen bill to Medicare?

In 2024, Dr. Maslen's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99213) and office visit, established patient (99214).

Show 4 more questionsShow fewer questions

Where did Dr. Thomas E. Maslen go to medical school?

Dr. Maslen graduated from University of Maryland School of Medicine in 1997.

What drugs does Dr. Thomas E. Maslen prescribe most?

In 2024 Medicare Part D data, Dr. Maslen's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.

Has Dr. Thomas E. Maslen received payments from drug or device companies?

CMS Open Payments shows $510 in general payments to Dr. Maslen from 9 companies from 2016 to 2024. The largest total came from Bristol-Myers Squibb Company.

How long has Dr. Thomas E. Maslen been practicing?

Dr. Maslen graduated from medical school in 1997, 29 years ago.

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