NPPES file of Aug 9, 2026

Martha Barzana-Fernandez

Internal Medicine Physician · Estero, FL

Martha Barzana-Fernandez is an internal medicine physician with a practice address in Estero, Florida, and NPI 1184017782, issued on Mar 6, 2015. Check the license (Florida OS15202, 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
1184017782
Name
Martha Barzana-Fernandez
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
OS15202 FL
Self-reported in NPPES; status is on the state search
Practice location
23450 Via Coconut PT, Estero, FL 34135
Phone
(239) 468-0150
Enumerated
Mar 6, 2015
Record last updated
Aug 18, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(239) 343-4056
Medicaid ID
101947800 FL
Medicare enrollment
Enrolled (PECOS I20180918000638); accepts Medicare assignment
Medical or professional school
Lake Erie College Of Osteopathic Medicine, Erie, 2015
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 23450 Via Coconut PT

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

  1. Michael Applebaum, M.D.Internal Medicine Physician1922009562
  2. Yanet Armas Hernandez, MDInternal Medicine Physician1295312486
  3. Giselle Brito Mantilla, MDInternal Medicine Physician1215679402
  4. Jessica Castaneira, M.DFamily Medicine Physician1740669613
  5. Jessica Castillo, MDInternal Medicine Physician1376009910
  6. Diana Chavez, PSYDPsychologist1386890267

Verify Martha Barzana-Fernandez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license OS15202
    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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95% fewer Medicare Part D claims than the average internal medicine physician in 2024

159 Medicare Part D claims for 56 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Martha Barzana-Fernandez159
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium12 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: $77.78

3 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Martha Barzana-Fernandez$77.78
  2. Specialty average$1,303.06

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. Guidewell Sanitas I, LLCMiami Lakes, FL

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

Martha Barzana-Fernandez among 10,151 internal medicine physician records in Florida

Martha Barzana-Fernandez is one of 10,151 internal medicine physician records with a practice address in Florida. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 71% of them.

  • NPI issued2015 · 71% of these records are older, 27% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2015 · median 2004 among the 6,606 with a school on file
  • Record last updated2020 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

15 internal medicine physician records list a practice address in Estero

They are 15 of the 431 NPPES records with a practice address in Estero, and 10,151 internal medicine physician records in Florida.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Michael Applebaum, M.D.Estero, FL 341351922009562
  2. Donald Baseman, DOBonita Springs, FL 341351326120635
  3. Steven Coleman, D.O.Bonita Springs, FL 341351134310444
  4. Jeremy Dzen, DOEstero, FL 341351013083997
  5. Giuseppe Guaitoli, M.D.Bonita Springs, FL 341351689620585
  6. Jorge Guzman, MDBonita Springs, FL 341351043228091
  7. Brian LeeBonita Springs, FL 341351174521066
  8. Shawn Miller, MDBonita Springs, FL 341351124106745

Common questions

What is Martha Barzana-Fernandez's NPI number?

Martha Barzana-Fernandez's National Provider Identifier (NPI) is 1184017782, issued on Mar 6, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Martha Barzana-Fernandez located?

The NPPES record lists a practice address at 23450 Via Coconut PT, Estero, FL, 34135. Phone: (239) 468-0150. Providers update this record themselves, so call before visiting.

How can I verify Martha Barzana-Fernandez's license?

NPPES lists Florida license number OS15202, 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 Martha Barzana-Fernandez prescribe under Medicare Part D?

In 2024, Martha Barzana-Fernandez had 159 Medicare Part D claims for 56 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.