DR. BLAIR SETH LEWIS M.D. NPI 1689765521

NPI Information

  • NPI: 1689765521
  • Provider Name: DR. BLAIR SETH LEWIS, M.D.
  • Classification: Internal Medicine - 207RG0100X
  • Specialization: Gastroenterology
  • Entity Type: Individual
  • PECOS Registration: Yes
  • Address: 1067 5TH AVE
    NEW YORK, NY
    ZIP 10128
  • Phone: (212) 369-6600

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NPI Details

DR. Blair Seth Lewis, M.D. is a gastroenterology internal medicine in New York, NY with 44 years of experience. The provider is an internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs. DR. Blair Seth Lewis, M.D. NPI is 1689765521. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

The provider's business location address is:

1067 5TH AVE
NEW YORK, NY
ZIP 10128-101
Phone: (212) 369-6600
Fax: (212) 369-8975

The NPI 1689765521 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Part B (Clinical Laboratory and Imaging), Durable Medical Equipment, Part A Home Health Agency (HHA), Power Mobility Devices.

The following top HCPCS codes were publicly reported for this provider under the Medicare program for the year 2016. The reported codes are based on the top codes for each available Medicare specialty, excluding evaluation and management codes.

  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (HCPCS:99213)
  • New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more (HCPCS:99202)
  • Biopsy of large bowel using a flexible endoscope (HCPCS:45380)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS:45385)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS:43239)
  • Colorectal cancer screening; colonoscopy on individual at high risk (HCPCS:G0105)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (HCPCS:99203)
  • Stool analysis for blood, by fecal hemoglobin determination by immunoassay (HCPCS:82274)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (HCPCS:99214)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (HCPCS:99212)
  • Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk (HCPCS:G0121)
  • Pathology examination of tissue using a microscope, intermediate complexity (HCPCS:88305)
  • Diagnostic exam of large bowel using a flexible endoscope (HCPCS:45378)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS:43235)
  • Colonoscopy (HCPCS:)
  • Upper gastrointestinal (GI) endoscopy for acid reflux (HCPCS:)

The enumeration date for this NPI number is 9/27/2006 and was last updated on 7/20/2026.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No. Taxonomy Code Taxonomy Clasification Taxonomy Specialization License Number License State Primary
1207RG0100XInternal MedicineGastroenterology156442-1NEW YORKYes

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

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