Mark Lamos, M.D.
NPI 1295782241 · Internal Medicine Physician · Hunt Valley, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Lamos, M.D. is a Internal Medicine Physician provider in Hunt Valley, MD (NPI 1295782241).
Provider details
- NPI number
- 1295782241
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D32453 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
491 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 188 | $80 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 185 | $94 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 52 | $15 |
| Administration of Influenza Virus VaccineG0008 | 17 | $34 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 17 | $135 |
| Detection Test By Multiplex Amplified Probe Technique for Severe Acute Respiratory Syndrome Coronavirus 2 (sars-Cov-2) (covid-19) and Influenza Virus Types a and B |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 64 | 26 |
| Losartan Potassium | 55 | 17 |
| Methylprednisolone | 29 | 24 |
| Lisinopril | 29 | — |
| Amlodipine Besylate | 28 | — |
| Metoprolol Succinate | 23 | — |
| Gabapentin | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-27
- Last updated
- 2007-08-02
Frequently asked questions
- What is Mark Lamos's NPI number?
- Mark Lamos's National Provider Identifier (NPI) is 1295782241, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Lamos's specialty?
- Mark Lamos is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Lamos located?
- Mark Lamos's practice location on file with NPPES is 9 Schilling Rd, Hunt Valley, MD 21031-1191.
- What is Mark Lamos's phone number?
- The practice phone number listed in the NPPES registry for Mark Lamos is (410) 771-9220.
- Does Mark Lamos accept Medicare?
- Mark Lamos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Lamos's NPI active?
- Yes — Mark Lamos's NPI (1295782241) is active in the NPPES registry as of the last update on 2007-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.