DR. KARL TQ MERSICH MD
NPI 1275633737
Internal Medicine - Gastroenterology in Orange City, FL

Q: What is Karl Mersich's NPI number?

The NPI number for Karl Mersich is 1275633737. It was assigned to this individual provider in the NPPES registry on September 25, 2006.

Q: What is Karl Mersich'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 Karl Mersich was last updated on February 23, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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 September 25, 2006PECOS EnrolledAccepts Medicare Assignment

2884 WELLNESS AVE STE 100, ORANGE CITY, FL 32763(386) 668-2221(386) 668-2228 Get Directions Write a Review

NPPES record last updated: February 23, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Karl Tq Mersich Md NPPES

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

DR. KARL TQ MERSICH MD (NPI 1275633737) is an individual gastroenterology provider in Orange City, Florida, licensed in Florida (134072) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Adventhealth Fish Memorial, and maintains a secondary practice location in Rochester.

NPPES Registry Identity

NPI1275633737

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. KARL TQ MERSICHCredential: MD

Location Address2884 WELLNESS AVE STE 100Orange City, FL 32763-8397

Mailing Address2884 Wellness Ave Ste 100Orange City, FL 32763-8397 · (386) 668-2221 · Fax (386) 668-2228

Phone(386) 668-2221

Fax(386) 668-2228

Sole ProprietorNo

Medical School CMSOtherGraduated 1997

Enumeration DateSeptember 25, 2006

Last NPPES UpdateFebruary 23, 2018

✔ NPI 1275633737 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Licenses✔ Licensed in FL · 134072✔ Licensed in NY · 177994-1

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.

2884 WELLNESS AVE STE 100, Orange City, FL 32763

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Secondary Practice Location 1

Location 11561 Long Pond Rd, Suite 110Rochester, NY 14626 · Phone (585) 723-1510 · Fax (585) 723-1518

Other Identifiers 1

Medicaid01252744NY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Superior HealthPlan, Ambetter Health, Ambetter of Alabama and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Karl Tq Mersich 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 ID3274533021

PECOS Enrollment IDI20180312002192

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 Reassignments

Medicare enrollment records show Karl Mersich reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gastro MD Florida, LLC

Same address

Gastroenterology

2884 WELLNESS AVE STE 100
Orange City, FL 32763

Reassigned Medicare billing, Florida enrollment
21 clinicians in this Medicare group

NPI 1821167230 (386) 668-2221

Associates In Digestive Health LLC

161 mi

Gastroenterology

625 DEL PRADO BLVD S
Cape Coral, FL 33990

Reassigned Medicare billing, Florida enrollment
Medicare enrollment name: Gastroenterology Associates Of Southwest Florida LLC
64 clinicians in this Medicare group

NPI 1790868099 (239) 772-3636

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 8

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

172 services48 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.

73 services36 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.

54 services49 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.

50 services48 patients

Special stained specimen slides to identify organisms including interpretation and report 88312

This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.

50 services15 patients

Special stained specimen slides to examine tissue including interpretation and report 88313

Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.

50 services15 patients

Hospital Affiliations CMS Care Compare

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

Adventhealth Fish Memorial

Acute Care Hospitals · Orange City, FL

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number100072

Location1055 Saxon BlvdOrange City, FL 32763 · Volusia County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32763 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

$130.04 typical visit price

range $56.00 – $171.84

Typical copayment $32.51 (range $14.00 – $42.96)

Most-billed visit code 99204

Established Patient

$99.16 typical visit price

range $17.57 – $139.16

Typical copayment $24.79 (range $4.39 – $34.79)

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. CAROLINE BROOKE EPSTEIN PA-C

Internal Medicine (Gastroenterology)