Nancy Szendy Mark, DC
- Medicare patients, 2024
- 54
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2012
- Practice address
- 633 Roanoke Ave, Riverhead, NY 11901-2727
- Practice phone
- Call (631) 727-3795
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hallmark Chiropractic
Multi-specialty group site · Riverhead, New York
Find Nancy Mark's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Nancy Szendy Mark is a chiropractor in Riverhead, New York
Nancy Mark practices at Hallmark Chiropractic in Riverhead, New York.
Nancy Mark's NPI, 1225398860, was assigned on May 16, 2012. Nancy Mark graduated from Life Chiropractic College in 1993. Nancy Mark holds New York license X007378-1.
- NPI
- 1225398860NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749431393
- NPI enumeration date
- May 16, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 727-3795
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Nancy Szendy Mark practices at Hallmark Chiropractic in Riverhead, New York
Nancy Mark's primary practice is Hallmark Chiropractic, at 633 Roanoke Ave, Riverhead, NY 11901-2727. The practice phone is (631) 727-3795.
- Hallmark Chiropractic633 Roanoke Ave, Riverhead, NY 11901-2727Phone(631) 727-3795
Source: Dmand AI Affiliation Data
Nancy Szendy Mark is affiliated with 1 site of care and 1 medical group
Nancy Mark's primary practice is Hallmark Chiropractic in Riverhead, New York. Dmand AI also links Nancy Mark to 1 medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Nancy Szendy Mark's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Nancy Mark practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hallmark Chiropractic | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Nancy Szendy Mark is one of 1,938 chiropractors in New York
Chiropractor is Nancy Mark's primary specialty in the NPI Registry, under taxonomy code 111N00000X. Nancy Mark is licensed in New York.
Specialties and state licenses
- Chiropractor, New YorkPrimary
Chiropractors near Nancy Mark
Counts of chiropractors with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Nancy Szendy Mark treated 54 Medicare patients in 2024, average age 73
CMS counts 54 Medicare patients who saw Nancy Mark in 2024. The largest group is 65 to 74, with 25 patients. 75% of them have high cholesterol, and 61% have high blood pressure. Their average risk score is 0.80, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Nancy Mark's median patient age at 61, with 76% women.
Nancy Mark's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Nancy Mark's Medicare patients by sex, 2024
- Women3463%
- Men2037%
Chronic conditions among Nancy Mark's Medicare patients, 2024
- High cholesterol75%
- High blood pressure61%
- Arthritis46%
- Anxiety30%
- Ischemic heart disease30%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Nancy Mark's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women76%
- Men24%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Nancy Szendy Mark takes part in Medicare
Nancy Mark accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Nancy Szendy Mark graduated from Life Chiropractic College
Nancy Mark graduated from Life Chiropractic College in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Nancy Szendy Mark's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Nancy Szendy Mark
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Nancy Szendy Mark's NPI number?
Nancy Szendy Mark's NPI number is 1225398860. It was assigned on May 16, 2012, and it is active in the NPI Registry.
What does Nancy Szendy Mark specialize in?
Nancy Szendy Mark is a chiropractor in Riverhead, New York. The primary specialty in the NPI Registry is Chiropractor (taxonomy code 111N00000X).
Where does Nancy Szendy Mark practice?
Nancy Mark practices at 633 Roanoke Ave, Riverhead, NY 11901-2727. Nancy Mark's primary practice is Hallmark Chiropractic in Riverhead, New York. Dmand AI also links Nancy Mark to 1 medical group.
What is Nancy Szendy Mark's office phone number?
The practice phone on file for Nancy Mark is (631) 727-3795.
What is Nancy Szendy Mark's medical license number?
Nancy Mark holds New York license X007378-1.
Does Nancy Szendy Mark accept Medicare?
Yes. CMS lists Nancy Mark as accepting Medicare assignment.
How many Medicare patients does Nancy Szendy Mark see?
CMS counts 54 Medicare patients who saw Nancy Mark in 2024, with an average age of 73.
Where did Nancy Szendy Mark go to medical school?
Nancy Mark graduated from Life Chiropractic College in 1993.
How long has Nancy Szendy Mark been practicing?
Nancy Mark graduated from medical school in 1993, 33 years ago.
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