Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1225398860 Individual Practitioner Female Practitioner

Dr. Nancy Szendy Mark , DC

Chiropractor • Riverhead, NY

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Nancy Mark, DC is a certified Chiropractor practicing in Riverhead, NY. With approximately 33 years of clinical experience since graduating from Life Chiropractic College in 1993, Dr. Mark delivers high-quality medical care to the local community at 633 ROANOKE AVE.

Dr. Mark is affiliated with Hallmark Chiropractic and accepts Medicare assignment.

Frequently performed procedures and clinical services include chiropractic manipulative treatment, 1-2 spinal regions. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

633 Roanoke Ave
Pulaski St. (Corner)

Riverhead, NY 119012727

Telephone 6317273795
Associated Practice Facility / Clinic
🏢 Hallmark Chiropractic Facility NPI 1942248489

Medicare Profile & Education

Medical School

Life Chiropractic College

Graduation Year

1993

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Chiropractor in Riverhead, NY

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
33 Yrs +1.5 yrs vs City Avg
City Avg: 31.5 Yrs
State Avg: 28.5 Yrs
Regional Practice Density
10 Specialists

Practicing in Riverhead, NY (4796 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
61.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Mark (33 Years) 33 Yrs
Riverhead Specialty Average (31.5 Years) 31.5 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
98940 Chiropractic manipulative treatment, 1-2 spinal regions
619 54 $78.81 $30.41

Medical Specialties & State Licenses

CMS Verified: 2020-03-10
Chiropractor Primary Specialty

NUCC Taxonomy Code: 111N00000X

State License NY X007378-1

A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID License Number
X007378-1 (NY)

Hospital & Practice Group Affiliations

Hallmark Chiropractic

633 Roanoke Ave, Riverhead, NY 119012727

Phone: 6317273795

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

1 Associated Practitioners
NPI 1669415238

Doctor of Chiropractic

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active June 06, 2012

NPI status registered as active in NPPES database

📍
Updated Practice Location June 06, 2012

Registered at 633 ROANOKE AVE, PULASKI ST. (CORNER), RIVERHEAD, NY 119012727 (Tel: 6317273795)

📍
Updated Business Mailing Address June 06, 2012

Registered at 633 ROANOKE AVE, PULASKI ST. (CORNER), RIVERHEAD, NY 119012727 (Tel: 6317273795)

👤
Provider Name / Credentials Updated June 06, 2012

Recorded as NANCY MARK, D.C.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 06, 2012

Chiropractor (License #X007378-1 in NY)

🟢
Initial NPI Registration & Enumeration May 16, 2012

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1225398860
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 16, 2012
Last Update: March 10, 2020
Sole Proprietor: No

Mailing Address

633 Roanoke Ave, Pulaski St. (Corner)

Riverhead, NY 119012727

Phone: 6317273795

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.