NICHOLAS HENRY ELIAS MEZITIS M.D.
NPI 1265527295
Internal Medicine - Endocrinology, Diabetes & Metabolism in Belpre, OH

Active since October 04, 2006PECOS EnrolledAccepts Medicare Assignment
81.3/100
CMS Quality Rating
1818 WASHINGTON BLVD STE F, BELPRE, OH 45714(740) 423-3640(740) 423-3641 Get Directions Write a Review

NPPES record last updated: December 10, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 10, 2025, May 20, 2025, Jul 14, 2020 and 3 more (6 updates tracked since 2016).

About Nicholas Henry Elias Mezitis M.d. NPPES

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

NICHOLAS HENRY ELIAS MEZITIS M.D. (NPI 1265527295) is an individual endocrinology, diabetes & metabolism provider in Belpre, Ohio, licensed in Ohio (35.123869) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Ohiohealth O'bleness Hospital, and is a graduate of Other (1977).

NPPES Registry Identity

NPI1265527295
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameNICHOLAS HENRY ELIAS MEZITISCredential: M.D.
Location Address1818 WASHINGTON BLVD STE FBelpre, OH 45714-2080
Mailing AddressPo Box 7527Dublin, OH 43017-0727
Fax(740) 423-3641
Sole ProprietorNo
Medical School CMSOtherGraduated 1977
Enumeration DateOctober 4, 2006
Last NPPES UpdateDecember 10, 20256 updates tracked since enumeration
NPPES CertifiedDecember 10, 2025
NPI 1265527295 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License Licensed in OH · 35.123869
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
1818 WASHINGTON BLVD STE F, Belpre, OH 45714

Accepted Insurance

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

Nicholas Henry Elias Mezitis M.d. 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 ID7618996174
PECOS Enrollment IDI20140814001356
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 7

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.
453 services198 patients
Blood glucose (sugar) test performed by hand-held instrument 82962
A blood glucose test uses a handheld device to measure the amount of sugar in your blood. A small prick on your finger allows a drop of blood to be placed on a test strip, which is then read by the device. This helps monitor and manage diabetes effectively.
131 services65 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
107 services59 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
89 services39 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
34 services28 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
33 services33 patients

Hospital Affiliations CMS Care Compare 3

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

Ohiohealth O'bleness Hospital

Acute Care Hospitals · Athens, OH
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number360014
Location55 Hospital DriveAthens, OH 45701 · Athens County
Emergency services Birthing friendly

Marietta Memorial Hospital

Acute Care Hospitals · Marietta, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number360147
Location401 Matthew StreetMarietta, OH 45750 · Washington County
Emergency services Birthing friendly

Selby General Hospital

Critical Access Hospitals · Marietta, OH
OwnershipVoluntary non-profit - Private
CMS Certification Number361319
Location1106 Colegate DriveMarietta, OH 45750 · Washington County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 45714 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
$126.12 typical visit price
range $54.34 – $166.65
Typical copayment $31.53 (range $13.58 – $41.66)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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.

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.

81.3/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.58
Promoting Interoperability98
Improvement Activities40
Cost65.77

Reported Quality Measures

Breast Cancer Screening
Percentage of women 50-74 years of age who had a mammogram to screen for breast cancer
42%159 patients2/55-star benchmark: 92%
Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
83%215 patients4/55-star benchmark: 100%
Cervical Cancer Screening
Percentage of women 21-64 years of age who were screened for cervical cancer using either of the following criteria: - Women age 21-64 who had cervical cytology performed every 3 years - Women age 30-64 who had cervical cytology/human papillomavirus (HPV)…
37%167 patients
Colorectal Cancer Screening
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
46%314 patients3/55-star benchmark: 85%
Diabetes: Eye Exam
Percentage of patients 18-75 years of age with diabetes who had a retinal or dilated eye exam by an eye care professional during the measurement period or a negative retinal exam (no evidence of retinopathy) in the 12 months prior to the measurement period
42%245 patients2/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
95%3,663 patients4/55-star benchmark: 99%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
46%216 patients3/55-star benchmark: 88%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
99%146 patients4/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
97%608 patients5/55-star benchmark: 97%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
71%571 patients3/55-star benchmark: 97%
Preventive Care and Screening: Influenza Immunization
Percentage of patients aged 6 months and older seen for a visit between October 1 and March 31 who received an influenza immunization OR who reported previous receipt of an influenza immunization
28%623 patients2/55-star benchmark: 88%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients screenedForUse: 100% · 389 patients
Patients tobacco: 30% · 47 patients
86%389 patients4/55-star benchmark: 98%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
100%608 patients5/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
25%608 patients2/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
36%608 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 7

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

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
4 suppliers26 claims321 services$18.24 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
4 suppliers24 claims805 services$2.39 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
28 suppliers120 claims260 services$5.98 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
9 suppliers25 claims27 services$0.97 avg. paid by Medicare
For diabetics only, fitting (including follow-up), custom preparation and supply of off-the-shelf depth-inlay shoe manufactured to accommodate multi-density insert(s), per shoe A5500
DME-Orthotic Devices · category DF000N
4 suppliers13 claims26 services$61.33 avg. paid by Medicare
Insulin for administration through dme (i.e., insulin pump) per 50 units J1817
Treatment-Injections and Infusions (nononcologic) · category RI000N
2 suppliers12 claims880 services$7.22 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 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Gerontology)
1818 WASHINGTON BLVD STE F
BELPRE, OH 45714
Nurse Practitioner (Family)
1818 WASHINGTON BLVD STE F
BELPRE, OH 45714
Nurse Practitioner (Family)
1818 WASHINGTON BLVD STE F
BELPRE, OH 45714
Clinic/Center (Multi-Specialty)
1818 WASHINGTON BLVD STE F
BELPRE, OH 45714
Family Medicine
1818 WASHINGTON BLVD STE F
BELPRE, OH 45714

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 Nicholas Mezitis's NPI number?

The NPI number for Nicholas Mezitis is 1265527295. It was assigned to this individual provider in the NPPES registry on October 4, 2006.

Where is Nicholas Mezitis located?

Nicholas Mezitis practices at 1818 Washington Blvd Ste F, Belpre, OH 45714. The listed phone number is (740) 423-3640.

What is Nicholas Mezitis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Nicholas Mezitis enrolled in Medicare?

Yes. Nicholas Mezitis 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.

What insurance does Nicholas Mezitis accept?

Health plans from Anthem Blue Cross and Blue Shield, Antidote Health Plan of Ohio, Inc., CareSource and MedMutual list Nicholas Mezitis as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Nicholas Mezitis affiliated with any hospitals?

According to CMS data, Nicholas Mezitis is affiliated with Ohiohealth O'bleness Hospital, Marietta Memorial Hospital and Selby General Hospital.

When was this NPI record last updated?

The NPPES record for Nicholas Mezitis was last updated on December 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.