Dr. Mark A. Lamos, MD
- Medicare services, 2024
- 507
- Medicare patients, 2024
- 273
- Part D claims, 2024
- 847
- Industry payments
- $754
- Affiliated sites
- 1
- Practice address
- 6701 N Charles St, Towson, MD 21204
- Practice phone
- Call (443) 849-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Greater Baltimore Medical Center
Towson, Maryland
Find Dr. Lamos' 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. Mark A. Lamos is an internist in Towson, Maryland
Dr. Lamos practices at Greater Baltimore Medical Center in Towson, Maryland.
Dr. Lamos' NPI, 1295782241, was assigned on May 27, 2006. Dr. Lamos graduated from Wayne State University School of Medicine in 1982. Dr. Lamos holds Maryland license D32453.
- NPI
- 1295782241NPI Registry (opens in a new tab)
- NPI enumeration date
- May 27, 2006
- NPI status
- Active
- Practice phone
- (443) 849-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Mark A. Lamos practices at Greater Baltimore Medical Center in Towson, Maryland
Dr. Lamos' primary practice is Greater Baltimore Medical Center, at 6701 N Charles St, Towson, MD 21204 in Baltimore County. The practice phone is (443) 849-2000.
- Greater Baltimore Medical Center6701 N Charles St, Towson, MD 21204 · Baltimore CountyPhone(443) 849-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark A. Lamos is affiliated with 2 sites of care and 1 medical group
Dr. Lamos' primary practice is Greater Baltimore Medical Center in Towson, Maryland. The medical group on file is Greater Baltimore Medical Center (GBMC). Dmand AI also links Dr. Lamos to 1 more group practice or clinic, 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. Mark A. Lamos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lamos practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greater Baltimore Medical Center | 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. Mark A. Lamos is one of 3,320 internists in Maryland
Internal medicine is Dr. Lamos' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lamos is licensed in Maryland.
Specialties and state licenses
- Internal medicine, MarylandPrimary
Internists near Dr. Lamos
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. Mark A. Lamos billed Medicare for 507 services in 2024
CMS data shows 507 Medicare services from Dr. Lamos across 8 procedure codes in 2024, for 273 Medicare patients. Medicare paid $28,361 for them. Every service was in an office.
Dr. Lamos' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4342024: 38910%
- Tests and treatments
- 2023: 842024: 6819%
- Other services
- 2023: 322024: 346%
- Lab and pathology
- 2023: 332024: 1652%
- Imaging
- 2023: 152024: 0100%
Dr. Lamos compared with the Maryland median for internists, 2024
- Dr. Lamos
- Maryland median
- Medicare services
- 507vs 65623% below
- Medicare patients
- 273vs 2519% above
- Part D claims
- 466vs 30951% above
Medians across 3,215 internists in Maryland with Dmand AI profiles that report each measure.
Dr. Lamos' 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. Lamos and other internists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark A. Lamos treated 273 Medicare patients in 2024, average age 74
CMS counts 273 Medicare patients who saw Dr. Lamos in 2024. The largest group is 65 to 74, with 127 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 7% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lamos' median patient age at 68, with 52% women.
Dr. Lamos' Medicare patients by age, 2024
Dr. Lamos' Medicare patients by sex, 2024
- Women15557%
- Men11843%
Chronic conditions among Dr. Lamos' Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis52%
- Ischemic heart disease28%
- Anxiety27%
- Mood disorders23%
- Diabetes22%
- Cancer21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lamos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark A. Lamos wrote 847 Medicare Part D claims in 2024
In 2024, Dr. Lamos wrote 847 Medicare Part D claims for 216 patients. 93% of them were for generic drugs. CMS names the drug for 466 of them, across 21 drugs with 11 or more claims each, at $4,924 in total drug cost. In 2023, CMS named 642 claims across 33 drugs.
Dr. Lamos' Part D claims by kind of drug, 2024
- Generic790 claims93%
- Brand-name and other57 claims7%
Dr. Lamos' 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. Lamos' Part D claims, 2024
- Antibiotics8%64 of 847 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: 6422024: 46627%
Drugs named by CMS: 21 in 2024, 33 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
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Dr. Mark A. Lamos received $754 in industry payments from 2016 to 2019
CMS Open Payments shows 40 general payments to Dr. Lamos from 15 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Kowa Pharmaceuticals America, Inc. paid the most, $177.
General payments to Dr. Lamos by program year, 2016 to 2019
Companies that paid Dr. Lamos the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark A. Lamos graduated from Wayne State University School of Medicine
Dr. Lamos graduated from Wayne State University School of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark A. Lamos'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) |
| 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. Mark A. Lamos
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. Mark A. Lamos' NPI number?
Dr. Mark A. Lamos' NPI number is 1295782241. It was assigned on May 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark A. Lamos?
Dr. Mark A. Lamos is an internist in Towson, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mark A. Lamos practice?
Dr. Lamos practices at 6701 N Charles St, Towson, MD 21204. Dr. Lamos' primary practice is Greater Baltimore Medical Center in Towson, Maryland. Dmand AI also links Dr. Lamos to 1 group practice or clinic.
What is Dr. Mark A. Lamos' office phone number?
The practice phone on file for Dr. Lamos is (443) 849-2000.
What is Dr. Mark A. Lamos' medical license number?
Dr. Lamos holds Maryland license D32453.
What medical group is Dr. Mark A. Lamos part of?
Dr. Lamos is linked to Greater Baltimore Medical Center (GBMC).
Does Dr. Mark A. Lamos accept Medicare?
Yes. CMS data shows Dr. Lamos billed Medicare for 507 services in 2024.
How many Medicare patients does Dr. Mark A. Lamos see?
CMS counts 273 Medicare patients who saw Dr. Lamos in 2024, with an average age of 74.
What services does Dr. Mark A. Lamos bill to Medicare?
In 2024, Dr. Lamos' most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and heart test or procedure (93000).
Where did Dr. Mark A. Lamos go to medical school?
Dr. Lamos graduated from Wayne State University School of Medicine in 1982.
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What drugs does Dr. Mark A. Lamos prescribe most?
In 2024 Medicare Part D data, Dr. Lamos' most prescribed drugs by claims were Rosuvastatin Calcium, Losartan Potassium and Lisinopril.
Has Dr. Mark A. Lamos received payments from drug or device companies?
CMS Open Payments shows $754 in general payments to Dr. Lamos from 15 companies from 2016 to 2019. The largest total came from Kowa Pharmaceuticals America, Inc.
How long has Dr. Mark A. Lamos been practicing?
Dr. Lamos graduated from medical school in 1982, 44 years ago.
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