STEVEN J. SHIELDS MD
NPI 1336235324
Internal Medicine - Gastroenterology in Boston, MA

Q: What is Steven Shields's NPI number?

The NPI number for Steven Shields is 1336235324. It was assigned to this individual provider in the NPPES registry on October 5, 2006.

Q: What is Steven Shields's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Steven Shields was last updated on February 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since October 05, 2006PECOS EnrolledAccepts Medicare Assignment

133 BROOKLINE AVE, BOSTON, MA 02215(617) 421-1091(617) 421-2555 Get Directions Write a Review

NPPES record last updated: February 25, 2021. Verified against the NPPES registry weekly; last sync: August 23, 2026.

On this page

About Steven J. Shields Md NPPES

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

STEVEN J. SHIELDS MD (NPI 1336235324) is an individual gastroenterology provider in Boston, Massachusetts, licensed in Massachusetts (60021) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Medical Center, and is a graduate of Tufts University School Of Medicine (1987).

NPPES Registry Identity

NPI1336235324

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameSTEVEN J. SHIELDSCredential: MD

Location Address133 BROOKLINE AVEBoston, MA 02215-3904

Mailing Address133 Brookline AveBoston, MA 02215-3904 · (617) 421-1091 · Fax (617) 421-2555

Phone(617) 421-1091

Fax(617) 421-2555

Sole ProprietorNo

Medical School CMSTufts University School Of MedicineGraduated 1987

Enumeration DateOctober 5, 2006

Last NPPES UpdateFebruary 25, 2021

NPPES CertifiedFebruary 25, 2021

✔ NPI 1336235324 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in MA · 60021

Definition

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.

133 BROOKLINE AVE, Boston, MA 02215

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Other Identifiers 7

Other8758456-003MA · Cigna

OtherJ08205MA · Blue Cross

OtherV020MA · Harvard Pilgrim

Medicaid3044203MA

OtherP00074997MA · Medicare Railroad

Other0003077MA · Neighborhood Health Plan

Other766330MA · Tufts Health Plan

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Steven J. Shields Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3173549011

PECOS Enrollment IDI20051019000976

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.

Areas of Expertise CMS Part B claims 18

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.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

213 services213 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

142 services142 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

69 services69 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

39 services38 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

39 services39 patients

Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare 43251

This procedure involves the use of a thin, flexible instrument called an endoscope to visualize and remove abnormal growths, known as polyps, from the esophagus, stomach, or upper small bowel. A tool called a mechanical snare is used to safely cut and remove these growths.

34 services34 patients

Blood glucose (sugar) measurement using reagent strip 82948

Blood glucose measurement using a reagent strip is a simple process. A tiny blood sample, usually taken from your finger, is placed on a test strip. The strip is inserted into a device that reads the blood sugar level. It's a quick, easy way to monitor blood sugar levels.

34 services34 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

33 services22 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

33 services31 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.

28 services27 patients

Liver function blood test panel 80076

A liver function blood test panel helps check the health of your liver. It measures various proteins, liver enzymes, and bilirubin in your blood. If these levels are too high or too low, it could signal a liver problem. It's a simple, non-invasive test that involves drawing blood.

27 services17 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

25 services25 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

24 services24 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

22 services22 patients

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.

19 services19 patients

Biopsy of large bowel using a flexible endoscope 45380

18 services18 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test 85027

A complete blood cell count (CBC) is an automated test that measures different components of the blood, including red cells, white cells, and platelets. It helps assess overall health, detect disorders like anemia or infection, and monitor medical treatments.

18 services14 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

13 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Beth Israel Deaconess Medical Center

Acute Care Hospitals · Boston, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220086

Location330 Brookline AvenueBoston, MA 02215 · Suffolk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02215 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

$144.11 typical visit price

range $63.72 – $189.86

Typical copayment $36.02 (range $15.93 – $47.46)

Most-billed visit code 99204

Established Patient

$111.18 typical visit price

range $21.07 – $155.29

Typical copayment $27.79 (range $5.26 – $38.82)

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.

Other Providers at the Same Location NPPES 20

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

MRS. MELISSA ASHLEY ZIOGAS APRN-FNP

Nurse Practitioner (Family)

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 421-1000

SHIVAUN ELAINE PIKE NP

Nurse Practitioner (Adult Health)

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 421-1000

HARRIET SCHEFT M.D.

Psychiatry & Neurology (Psychiatry)

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 421-2040

CAROL J ZUCKERMAN M.D.

Internal Medicine

133 BROOKLINE AVE, INTERNAL MEDICINE
BOSTON, MA 02215

Suffolk County (617) 421-5804

HARVARD VANGUARD MEDICAL ASSOCIATES

Social Worker

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 421-1000

DIANE L. GILWORTH NP

Registered Nurse

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 421-6050

MARGARET SIDOR PHD, CGC

Genetic Counselor, MS

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 421-1035

NED WILSON MORSE

Technician/Technologist (Optician)

133 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (174) 211-1496

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 Steven Shields's NPI number?

The NPI number for Steven Shields is 1336235324. It was assigned to this individual provider in the NPPES registry on October 5, 2006.

Where is Steven Shields located?

Steven Shields practices at 133 Brookline Ave, Boston, MA 02215. The listed phone number is (617) 421-1091.

What is Steven Shields's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Steven Shields enrolled in Medicare?

Yes. Steven Shields is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Steven Shields accept?

Health plans from Anthem Blue Cross and Blue Shield list Steven Shields as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Steven Shields affiliated with any hospitals?

According to CMS data, Steven Shields is affiliated with Beth Israel Deaconess Medical Center.

When was this NPI record last updated?

The NPPES record for Steven Shields was last updated on February 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.