NPPES file of Aug 9, 2026

Mark Steven Russo, MD, PHD

Nephrology Physician · Naples, FL

Mark Steven Russo, MD, PHD is a nephrology physician with a practice address in Naples, Florida, and NPI 1316934326, issued on Oct 4, 2005. Check the license (Florida 83306, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1316934326
Name
Mark Steven Russo
Credential
MD, PHD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
83306 FL
Self-reported in NPPES; status is on the state search
Practice location
878 109TH Ave N, Naples, FL 34108
Phone
(239) 513-1002
Enumerated
Oct 4, 2005
Record last updated
Sep 11, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(239) 513-1915
Medicaid ID
263246200 FL
Medicare enrollment
Enrolled (PECOS I20060822000018); accepts Medicare assignment
Medical or professional school
State University Of New York Downstate Medical Center, 1995
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 878 109TH Ave N

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lauren Bledsoe, PAPhysician Assistant1124541321
  2. Stephen GoldbergerNephrology Physician1033167648
  3. Kelly Kompinski, PA-CMedical Physician Assistant1083208003
  4. Russell Masterson, PHDHealth Service Psychologist1851339220
  5. Austin Morris, MDNephrology Physician1417521675
  6. Nijal ShethNephrology Physician1740422187

Verify Mark Steven Russo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license 83306
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Florida license search

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22% more Medicare Part D claims than the average nephrology physician in 2024

1,786 Medicare Part D claims for 415 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Mark Russo1,786
  2. Specialty average1,465

Most prescribed

  1. Losartan Potassium245 claims
  2. Amlodipine Besylate134 claims
  3. Calcitriol113 claims
  4. Sevelamer Carbonate109 claims
  5. Allopurinol100 claims
  6. Spironolactone77 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $3,538.04

53 payments; by number, the most common kind was food and beverage; the largest payer was Baxter Healthcare. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Russo$3,538.04
  2. Specialty average$3,091.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Naples Nephrology P ANaples, FL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nephrology Physician providers in Florida

There are 840 nephrology physician records in Florida.

Other nephrology physician records in Florida

  1. Kashif Abad, M.D.West Palm Beach, FL1518405075
  2. Fernando Abanilla, MDAvon Park, FL1558469338
  3. Fakhar AbbasPlantation, FL1952276321
  4. Lionel Abbott, MDOrlando, FL1568436418
  5. Atif Abdalla, MDJacksonville, FL1528013042
  6. Beshoy Abdalla, DOTampa, FL1487273579
  7. Layal Abdel Rahman, M.D.Largo, FL1134383615
  8. Rania Abdel-Rahman, M.D.Jacksonville, FL1013059211
  9. Yehia Abdelwahed, M.D.Atlantis, FL1750557666
  10. Emil Abdulhayoglu, MDBrandon, FL1801860671

Common questions

What is Mark Steven Russo, MD, PHD's NPI number?

Mark Steven Russo, MD, PHD's National Provider Identifier (NPI) is 1316934326, issued on Oct 4, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark Steven Russo, MD, PHD located?

The NPPES record lists a practice address at 878 109TH Ave N, Naples, FL, 34108. Phone: (239) 513-1002. Providers update this record themselves, so call before visiting.

How can I verify Mark Steven Russo, MD, PHD's license?

NPPES lists Florida license number 83306, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Steven Russo, MD, PHD prescribe under Medicare Part D?

In 2024, Mark Steven Russo, MD, PHD had 1,786 Medicare Part D claims for 415 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.