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DR. MARK A LAMOS M.D.
NPI 1295782241
Internal Medicine in Hunt Valley, MD

Active since May 27, 2006PECOS Enrolled
9 SCHILLING RD, HUNT VALLEY, MD 21031(410) 771-9220 Get Directions Write a Review

NPPES record last updated: August 2, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Mark A Lamos M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK A LAMOS M.D. (NPI 1295782241) is an individual internal medicine provider in Hunt Valley, Maryland, licensed in Maryland (D32453) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1295782241
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARK A LAMOSCredential: M.D.
Location Address9 SCHILLING RDHunt Valley, MD 21031-1191
Mailing AddressPo Box 631568Baltimore, MD 21263-1568
Phone(410) 771-9220
Sole ProprietorNo
Enumeration DateMay 27, 2006
Last NPPES UpdateAugust 2, 2007
✔ NPI 1295782241 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MD · D32453
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
9 SCHILLING RD, Hunt Valley, MD 21031
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Other Identifiers 4

Medicare UPINB47302
Medicare PIN725L99LLMD
OtherS1380009MD · Carefirst Regional Gbmc
OtherKJ15/42400501MD · Carefirst Maryland Gbmc

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark A Lamos M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mark Lamos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Greater Baltimore Medical Center, Inc.
1.2 mi
Family Medicine
9 SCHILLING RD STE 102
Hunt Valley, MD 21031
  • Reassigned Medicare billing, Maryland enrollment
  • 444 clinicians in this Medicare group
NPI 1154143519 (410) 771-9220

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
188 services157 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
185 services124 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
52 services51 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
17 services17 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
17 services17 patients
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 87636
This test detects the presence of SARS-CoV-2 (COVID-19) and Influenza types A and B in your body. It uses a method called the multiplex amplified probe technique to amplify and identify specific virus genes. It helps in early diagnosis and appropriate treatment.
16 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21031 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier11 claims11 services$208.06 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 16

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. PAMELA S MUCHA C.R.N.P.
Nurse Practitioner (Adult Health)
9 SCHILLING RD
HUNT VALLEY, MD 21031
Baltimore County (410) 771-9220
OLUFUNTO CAMPBELL MD
Family Medicine
9 SCHILLING RD
HUNT VALLEY, MD 21031
Baltimore County (202) 763-1149
RICHARD B ENGLANDER D.D.S.
Dentist
9 SCHILLING RD
HUNT VALLEY, MD 21031
Baltimore County (410) 527-0303
MS. JANIS ROSEMARY MARTIN LCSW-C
Counselor (Mental Health)
9 SCHILLING RD, SUITE 200
HUNT VALLEY, MD 21031
Baltimore County (410) 527-0280
MRS. SANDRA LARGEN COWETT LCSWC ACSW QCSW
Social Worker (Clinical)
9 SCHILLING RD, STE 200 SANDRA L COWETT LCSW C
HUNT VALLEY, MD 21031
Baltimore County (410) 527-0280
ELIZABETH L SPOTTS LCSW-C
Social Worker (Clinical)
9 SCHILLING RD, SUITE 200
HUNT VALLEY, MD 21031
Baltimore County (410) 371-3193
DARBY LEE BURMAN LCSW-C
Social Worker (Clinical)
9 SCHILLING RD, SUITE 200
HUNT VALLEY, MD 21031
Baltimore County (410) 527-0280
CHARLES ROSS ECK JR. MD
Internal Medicine
9 SCHILLING RD, SUITE 102
HUNT VALLEY, MD 21031
Baltimore County (410) 771-9220

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Lamos's NPI number?

The NPI number for Mark Lamos is 1295782241. It was assigned to this individual provider in the NPPES registry on May 27, 2006.

Where is Mark Lamos located?

Mark Lamos practices at 9 Schilling Rd, Hunt Valley, MD 21031. The listed phone number is (410) 771-9220.

What is Mark Lamos's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mark Lamos enrolled in Medicare?

Yes. Mark Lamos is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mark Lamos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Lamos reassigns Medicare benefits to Greater Baltimore Medical Center, Inc. (Hunt Valley, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Lamos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mark Lamos was last updated on August 2, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.