1. Home
  2. Directory
  3. New York
  4. Mineola
  5. Physician Assistant
  6. NPI Profile

MR. MARK GRZESIAK RPAC
NPI 1376717272
Physician Assistant in Mineola, NY

Active since April 22, 2008PECOS EnrolledAccepts Medicare Assignment
74.06/100
CMS Quality Rating
259 1ST ST, MINEOLA, NY 11501(516) 663-8312(516) 663-2184 Get Directions Write a Review

NPPES record last updated: April 22, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mr. Mark Grzesiak Rpac NPPES

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

MR. MARK GRZESIAK RPAC (NPI 1376717272) is an individual physician assistant in Mineola, New York, licensed in New York (010785) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS and is a graduate of Other (2005).

NPPES Registry Identity

NPI1376717272
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameMR. MARK GRZESIAKCredential: RPAC
Location Address259 1ST STMineola, NY 11501-3957
Mailing Address700 Hicksville Rd, Suite 204Bethpage, NY 11714-3471 · (516) 576-6106 · Fax (516) 576-5801
Phone(516) 663-8312
Fax(516) 663-2184
Sole ProprietorYes
Medical School CMSOtherGraduated 2005
Enumeration DateApril 22, 2008
✔ NPI 1376717272 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in NY · 010785
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
259 1ST ST, Mineola, NY 11501
Open in Google Maps ↗

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

Mr. Mark Grzesiak Rpac 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 ID9436281888
PECOS Enrollment IDI20100720000770
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

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.

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.
31 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11501 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.06/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality60.17
Promoting Interoperability85
Improvement Activities40
Cost56.37

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; syringe fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4034
Other-Enteral and Parenteral · category OB006N
5 suppliers30 claims847 services$2.93 avg. paid by Medicare
Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152
Other-Enteral and Parenteral · category OB006N
3 suppliers30 claims18,183 services$0.31 avg. paid by Medicare
Capecitabine, oral, 500 mg J8521
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier19 claims1,552 services$0.76 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
1 supplier11 claims11 services$18.91 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
1 supplier11 claims14 services$12.61 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

LINDSY MILLER M.D.
Anesthesiology
259 1ST ST
MINEOLA, NY 11501
Nassau County (516) 741-0570
GINA CARUCCI
Physician Assistant (Medical)
259 1ST ST
MINEOLA, NY 11501
Nassau County (516) 663-0333
DR. CHRISTIAN GIGANTE MD
Student in an Organized Health Care Education/Training Program
259 1ST ST
MINEOLA, NY 11501
Nassau County (516) 663-8794
CHRISTOPHER PETILLO
Student in an Organized Health Care Education/Training Program
259 1ST ST
MINEOLA, NY 11501
Nassau County (516) 663-0333
JOHN ANTHONY DINELLI MD
Student in an Organized Health Care Education/Training Program
259 1ST ST
MINEOLA, NY 11501
Nassau County (516) 663-0333
MANISHA SAKORE MD
Pediatrics (Neonatal-Perinatal Medicine)
259 1ST ST
MINEOLA, NY 11501
Nassau County (516) 663-3853
DR. LAWRENCE SCHEINBERG M.D.
Anesthesiology
259 1ST ST
MINEOLA, NY 11501
Nassau County (516) 663-0333
DR. KIM ANN RUTHERFORD M.D.
Pediatrics (Pediatric Emergency Medicine)
259 1ST ST
MINEOLA, NY 11501
Nassau County (717) 531-8955

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 Mark Grzesiak's NPI number?

The NPI number for Mark Grzesiak is 1376717272. It was assigned to this individual provider in the NPPES registry on April 22, 2008.

Where is Mark Grzesiak located?

Mark Grzesiak practices at 259 1st St, Mineola, NY 11501. The listed phone number is (516) 663-8312.

What is Mark Grzesiak's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Mark Grzesiak enrolled in Medicare?

Yes. Mark Grzesiak 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.

When was this NPI record last updated?

The NPPES record for Mark Grzesiak was last updated on April 22, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.