Physician Profile
Andrea S. Klayman, M.D. is a healthcare provider in Portland, ME specializing in internal medicine. Andrea trained at University of Massachusetts Medical School, graduating in 2008. Medicare claims data shows Andrea provided 1,491 services to 1,177 patients. The services billed most often include insertion of needle into vein for collection of blood sample, blood test, comprehensive group of blood chemicals, and complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
84 MARGINAL WAY SUITE 800
Portland, ME 04101
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
1,491 services · 1,177 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
281 | More often than most peers in Internal Medicine |
| Screening mammography | Imaging | 77067 |
21 | Less often than most peers in Internal Medicine |
| Screening 3d breast mammography | Imaging | 77063 |
21 | Less often than most peers in Internal Medicine |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
42 | More often than most peers in Internal Medicine |
| Sarscv2 vac 30mcg trs-suc im | Treatment | 91320 |
38 | More often than most peers in Internal Medicine |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
33 | As often as other peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
14 | Less often than most peers in Internal Medicine |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
150 | As often as other peers in Internal Medicine |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
107 | As often as other peers in Internal Medicine |
| Blood test, lipids (cholesterol and triglycerides) | Lab test | 80061 |
98 | As often as other peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Andrea S. Klayman is an internist in Portland, ME. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Andrea S. Klayman is listed at 84 Marginal Way Suite 800, Portland, ME 04101. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (207) 774-5816. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Andrea S. Klayman's National Provider Identifier is 1780856963. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Andrea S. Klayman attended University of Massachusetts Medical School, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
Andrea S. Klayman has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Andrea S. Klayman performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as screening mammography and screening 3d breast mammography; provides treatments such as admn sarscov2 vacc 1 dose and sarscv2 vac 30mcg trs-suc im, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Andrea S. Klayman. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.