Physician Profile
Based in Harwich, MA, Katrin S. Sadigh, M.D. is listed in the NPI registry under internal medicine. Katrin graduated from Boston University School of Medicine in 2013. Medicare claims data shows Katrin provided 191 services to 191 patients. The services billed most often include blood test, basic group of blood chemicals (calcium, total), insertion of needle into vein for collection of blood sample, and liver enzyme (sgpt), level.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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.
525 LONG POND DR
Harwich, MA 02645
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
191 services · 191 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
21 | Less often than most peers in Internal Medicine |
| Blood test, basic group of blood chemicals (calcium, total) | Lab test | 80048 |
21 | Less often than most peers in Internal Medicine |
| Liver enzyme (sgpt), level | Lab test | 84460 |
20 | Less often than most peers in Internal Medicine |
| Liver enzyme (sgot), level | Lab test | 84450 |
20 | Less often than most peers in Internal Medicine |
| Phosphatase (enzyme) level, alkaline | Lab test | 84075 |
20 | Less often than most peers in Internal Medicine |
| Bilirubin level, total | Lab test | 82247 |
20 | Less often than most peers in Internal Medicine |
| Albumin (protein) level | Lab test | 82040 |
20 | Less often than most peers in Internal Medicine |
| Blood test, thyroid stimulating hormone (tsh) | Lab test | 84443 |
19 | Less often than most peers in Internal Medicine |
| Blood test, lipids (cholesterol and triglycerides) | Lab test | 80061 |
19 | Less often than most 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 |
11 | Less often than most peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Katrin S. Sadigh is an internist in Harwich, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Katrin S. Sadigh is listed at 525 Long Pond Dr, Harwich, MA 02645. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (508) 430-3322. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Katrin S. Sadigh's National Provider Identifier is 1770928681. 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
Katrin S. Sadigh attended Boston University School of Medicine, graduating in 2013. This comes from the CMS National Downloadable File.
CMS public data
Katrin S. Sadigh has 13 years experience. Calculated from a graduation year of 2013, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Katrin S. Sadigh performs procedures including insertion of needle into vein for collection of blood sample, 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 Katrin S. Sadigh. 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.