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MARK IRA FELDMAN M.D.
NPI 1356334957
Internal Medicine - Cardiovascular Disease in Tucson, AZ

Active since August 30, 2005PECOS Enrolled
3801 N CAMPBELL AVE, SUITE C, TUCSON, AZ 85719(520) 327-3644(520) 327-4867 Get Directions Write a Review

NPPES record last updated: May 8, 2008. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Mark Ira Feldman M.d. NPPES

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

MARK IRA FELDMAN M.D. (NPI 1356334957) is an individual cardiovascular disease provider in Tucson, Arizona, licensed in Arizona (5756) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1967).

NPPES Registry Identity

NPI1356334957
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameMARK IRA FELDMANCredential: M.D.
Location Address3801 N CAMPBELL AVE, SUITE CTucson, AZ 85719-1448
Mailing Address3801 N Campbell Ave, Suite CTucson, AZ 85719-1448 · (520) 327-3644 · Fax (520) 327-4867
Phone(520) 327-3644
Fax(520) 327-4867
Sole ProprietorNo
Medical School CMSOtherGraduated 1967
Enumeration DateAugust 30, 2005
Last NPPES UpdateMay 8, 2008
✔ NPI 1356334957 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in AZ · 5756
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
3801 N CAMPBELL AVE, Tucson, AZ 85719
Open in Google Maps ↗

Other Identifiers 3

Medicare ID-Type Unspecified64012AZ · Medicare Number
Medicaid281543AZ
Medicare UPIND36828

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Ira Feldman M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4486671369
PECOS Enrollment IDI20051031000128
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 Reassignment

Medicare enrollment records show Mark Feldman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mark Ira Feldman, M D P C
Same address
Cardiovascular Disease
3801 N CAMPBELL AVE STE C
Tucson, AZ 85719
  • Reassigned Medicare billing, Arizona enrollment
NPI 1144549510 (520) 327-3644

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 2

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.

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
612 services88 patients
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 99305
An initial nursing facility visit per day is a service where a healthcare professional spends about 35 minutes assessing a patient's health status. This includes reviewing medical history, conducting a physical exam, and developing a care plan based on the patient's needs.
107 services90 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85719 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
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.

Other Providers at the Same Location NPPES 4

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

ACACIA FAMILY MEDICINE, PC
Clinic/Center
3801 N CAMPBELL AVE, SUITE B
TUCSON, AZ 85719
Pima County (520) 732-3361
DR. MONICA ELAINE DIAMOS O.D.
Optometrist
3801 N CAMPBELL AVE, SUITE E
TUCSON, AZ 85719
Pima County (520) 327-2400
MONICA E. DIAMOS, O.D., PC
Eyewear Supplier
3801 N CAMPBELL AVE, SUITE E
TUCSON, AZ 85719
Pima County (520) 327-2400
ELIZABETH DAWN CAPOTOSTI FNP
Nurse Practitioner (Family)
3801 N CAMPBELL AVE, STE B
TUCSON, AZ 85719
Pima County (520) 777-4192

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 Feldman's NPI number?

The NPI number for Mark Feldman is 1356334957. It was assigned to this individual provider in the NPPES registry on August 30, 2005.

Where is Mark Feldman located?

Mark Feldman practices at 3801 N Campbell Ave Suite C, Tucson, AZ 85719. The listed phone number is (520) 327-3644.

What is Mark Feldman's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Mark Feldman enrolled in Medicare?

Yes. Mark Feldman is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mark Feldman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Feldman reassigns Medicare benefits to Mark Ira Feldman, M D P C (Tucson, AZ). The 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 Mark Feldman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Feldman accept?

Health plans from UnitedHealthcare list Mark Feldman 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 Mark Feldman was last updated on May 8, 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.