MARK DEMSHICK CRNA
NPI 1831655521
Nurse Anesthetist, Certified Registered in Doylestown, PA

Q: What is Mark Demshick's NPI number?

The NPI number for Mark Demshick is 1831655521. It was assigned to this individual provider in the NPPES registry on February 18, 2019.

Q: What is Mark Demshick's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Q: When was this NPI record last updated?

The NPPES record for Mark Demshick was last updated on February 18, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 February 18, 2019PECOS Enrolled

595 W STATE ST, DOYLESTOWN, PA 18901(215) 345-2321(517) 787-7365 Get Directions Write a Review

NPPES record last updated: February 18, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Mark Demshick Crna NPPES

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

MARK DEMSHICK CRNA (NPI 1831655521) is an individual nurse anesthetist, certified registered in Doylestown, Pennsylvania, licensed in Pennsylvania (RN629539) and active in the NPI registry since February 2019. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1831655521

Entity TypeIndividualMale

Primary Taxonomy367500000X

Provider Legal NameMARK DEMSHICKCredential: CRNA

Location Address595 W STATE STDoylestown, PA 18901-2554

Mailing Address595 W State StDoylestown, PA 18901-2554 · (215) 345-2321 · Fax (517) 787-7365

Phone(215) 345-2321

Fax(517) 787-7365

Sole ProprietorNo

Enumeration DateFebruary 18, 2019

✔ NPI 1831655521 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code367500000X

License✔ Licensed in PA · RN629539

Definition

(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.

595 W STATE ST, Doylestown, PA 18901

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Demshick Crna is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Mark Demshick reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Group Anesthesiologists' Services

Same address

Anesthesiology

595 W STATE ST
Doylestown, PA 18901

Reassigned Medicare billing, Pennsylvania enrollment
45 clinicians in this Medicare group

NPI 1447285481 (215) 348-1523

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

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.

Anesthesia for other procedure on large bowel using an endoscope 00811

Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.

76 services76 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

60 services56 patients

Anesthesia for procedure on small and large bowel using an endoscope 00813

Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.

26 services26 patients

Anesthesia for exam of colon using an endoscope 00812

Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.

20 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 18901 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

$137.17 typical visit price

range $59.88 – $180.99

Typical copayment $34.29 (range $14.97 – $45.24)

Most-billed visit code 99204

Established Patient

$74.47 typical visit price

range $19.30 – $147.29

Typical copayment $18.61 (range $4.82 – $36.82)

Most-billed visit code 99213

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.

DAVID SHEEHAN D.O.

Radiology (Vascular & Interventional Radiology)

595 W STATE ST, DOYLESTOWN RADIOLOGY ASSOCIATES
DOYLESTOWN, PA 18901

Bucks County (215) 345-2849

DANIEL JOSEPH SLADE

Radiology (Diagnostic Radiology)