MARK WILLIAM GUELZOW MD
NPI 1124477484
Family Medicine in Fayetteville, NY

Active since June 08, 2016PECOS EnrolledAccepts Medicare Assignment
4101 MEDICAL CENTER DR STE 1C, FAYETTEVILLE, NY 13066(315) 637-7878 Get Directions Write a Review

NPPES record last updated: July 3, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 3, 2021, Aug 26, 2020 (2 updates tracked since 2020).

About Mark William Guelzow Md NPPES

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

MARK WILLIAM GUELZOW MD (NPI 1124477484) is an individual family medicine provider in Fayetteville, New York, licensed in New York (301689) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with St Charles Hospital, and maintains a secondary practice location in Syracuse.

NPPES Registry Identity

NPI1124477484
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameMARK WILLIAM GUELZOWCredential: MD
Location Address4101 MEDICAL CENTER DR STE 1CFayetteville, NY 13066-6600
Mailing Address8 Rowley DrNorthport, NY 11768-3244 · (561) 523-3216
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateJune 8, 2016
Last NPPES UpdateJuly 3, 20212 updates tracked since enumeration
NPPES CertifiedJuly 3, 2021
NPI 1124477484 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in NY · 301689
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
4101 MEDICAL CENTER DR STE 1C, Fayetteville, NY 13066

Secondary Practice Location 1

Location 1301 Prospect Ave, Medical EducationSyracuse, NY 13203-1807 · Phone (315) 448-5536

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

Mark William Guelzow 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 ID941634208
PECOS Enrollment IDI20191220000187
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 16

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.
721 services342 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
476 services285 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
228 services228 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
126 services122 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
114 services113 patients
Influenza vaccine, inactivated 90653
The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.
112 services112 patients

Hospital Affiliations CMS Care Compare 4

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

St Charles Hospital

Acute Care Hospitals · Port Jefferson, NY
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number330246
Location200 Belle Terre RoadPort Jefferson, NY 11777 · Suffolk County
Birthing friendly

Good Samaritan Hospital Medical Center

Acute Care Hospitals · West Islip, NY
1/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number330286
Location1000 Montauk HighwayWest Islip, NY 11795 · Suffolk County
Emergency services Birthing friendly

Suny/Stony Brook University Hospital

Acute Care Hospitals · Stony Brook, NY
4/5 CMS rating
OwnershipGovernment - State
CMS Certification Number330393
LocationHealth Sciences Center SunyStony Brook, NY 11794 · Suffolk County
Emergency services Birthing friendly

St Catherine Of Siena Hospital Medical Center

Acute Care Hospitals · Smithtown, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number330401
Location50 Route 25ASmithtown, NY 11787 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 13066 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
$84.93 typical visit price
range $54.87 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
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.

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 Guelzow's NPI number?

The NPI number for Mark Guelzow is 1124477484. It was assigned to this individual provider in the NPPES registry on June 8, 2016.

Where is Mark Guelzow located?

Mark Guelzow practices at 4101 Medical Center Dr Ste 1C, Fayetteville, NY 13066. The listed phone number is (315) 637-7878.

What is Mark Guelzow's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Mark Guelzow enrolled in Medicare?

Yes. Mark Guelzow 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.

Is Mark Guelzow affiliated with any hospitals?

According to CMS data, Mark Guelzow is affiliated with St Charles Hospital, Good Samaritan Hospital Medical Center, Suny/Stony Brook University Hospital and St Catherine Of Siena Hospital Medical Center.

When was this NPI record last updated?

The NPPES record for Mark Guelzow was last updated on July 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.