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DR. MARY CATHERINE PORVAZNIK MD
NPI 1871582635
Family Medicine in Flagstaff, AZ

Active since October 14, 2005PECOS EnrolledAccepts Medicare Assignment
33.68/100
CMS Quality Rating
1501 S YALE ST STE 2, FLAGSTAFF, AZ 86001(928) 527-4325(928) 527-4327 Get Directions Write a Review

NPPES record last updated: September 28, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 10, 2019, Mar 16, 2017 (2 updates tracked since 2017).

About Dr. Mary Catherine Porvaznik Md NPPES

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

DR. MARY CATHERINE PORVAZNIK MD (NPI 1871582635) is an individual family medicine provider in Flagstaff, Arizona, licensed in Arizona (22035) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Uniformed Services Uhs Fe Hebert School Of Med (1992).

NPPES Registry Identity

NPI1871582635
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. MARY CATHERINE PORVAZNIKCredential: MD
Location Address1501 S YALE ST STE 2Flagstaff, AZ 86001-7304
Mailing Address1501 S Yale St Ste 2Flagstaff, AZ 86001-7304 · (928) 527-4325 · Fax (928) 527-4327
Phone(928) 527-4325
Fax(928) 527-4327
Sole ProprietorNo
Medical School CMSUniformed Services Uhs Fe Hebert School Of MedGraduated 1992
Enumeration DateOctober 14, 2005
Last NPPES UpdateSeptember 28, 20232 updates tracked since enumeration
NPPES CertifiedSeptember 28, 2023
✔ NPI 1871582635 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in AZ · 22035
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.
1501 S YALE ST STE 2, Flagstaff, AZ 86001
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Secondary Practice Locations 2

Location 1107 E Oak Ave, Suite 201Flagstaff, AZ 86001-1818 · Phone (928) 913-8809
Location 21501 S Yale St Ste 2Flagstaff, AZ 86001-7304 · Phone (928) 527-4325 · Fax (928) 527-4327

Other Identifiers 3

Medicaid50553771CO
MedicaidZ3755NM
Medicaid434853AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter Health, Blue Cross Blue Shield of Arizona.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. Mary Catherine Porvaznik 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 ID9335310242
PECOS Enrollment IDI20160901001417
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

3

Medicare enrollment records show Mary Porvaznik reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Doc Martins Inc A C C
Same address
Family Medicine
1501 S YALE ST STE 150
Flagstaff, AZ 86001
  • Reassigned Medicare billing, Arizona enrollment
  • 6 clinicians in this Medicare group
NPI 1699724039 (928) 527-4325
Porvaznik Family Medicine PLLC
5.3 mi
Family Medicine
5200 E CORTLAND BLVD STE D3
Flagstaff, AZ 86004
  • Reassigned Medicare billing, Arizona enrollment
NPI 1366278913 (928) 440-5929
Greater Phoenix Collaborative Care PC
115 mi
Clinic/Center
8041 N BLACK CANYON HWY
Phoenix, AZ 85021
  • Reassigned Medicare billing, Arizona enrollment
  • 190 clinicians in this Medicare group
NPI 1750686614 (602) 249-0115

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 9

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.
211 services132 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
102 services77 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.
88 services88 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.
42 services24 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
14 services12 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.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 86001 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
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
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.

33.68/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality30
Improvement Activities0
Cost72.28

Referred Medical Equipment & Supplies CMS DME claims 3

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
6 suppliers21 claims54 services$6.43 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers23 claims26 services$16.93 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers34 claims36 services$85.82 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Mary Porvaznik's NPI number?

The NPI number for Mary Porvaznik is 1871582635. It was assigned to this individual provider in the NPPES registry on October 14, 2005.

Where is Mary Porvaznik located?

Mary Porvaznik practices at 1501 S Yale St Ste 2, Flagstaff, AZ 86001. The listed phone number is (928) 527-4325.

What is Mary Porvaznik's specialty?

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

Is Mary Porvaznik enrolled in Medicare?

Yes. Mary Porvaznik 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.

Which organizations bill Medicare for Mary Porvaznik's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Porvaznik reassigns Medicare benefits to 3 organizations: Doc Martins Inc A C C (Flagstaff, AZ), Porvaznik Family Medicine PLLC (Flagstaff, AZ) and Greater Phoenix Collaborative Care PC (Phoenix, AZ). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Porvaznik's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Porvaznik accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health and Blue Cross Blue Shield of Arizona list Mary Porvaznik 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.

When was this NPI record last updated?

The NPPES record for Mary Porvaznik was last updated on September 28, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.