NPPES file of Aug 9, 2026

Nathaniel P. Fleischner, M.D.

Internal Medicine Physician · Royal Palm Beach, FL

Nathaniel P. Fleischner, M.D. is an internal medicine physician with a practice address in Royal Palm Beach, Florida, and NPI 1083880926, issued on Apr 30, 2008. Check the license (Florida ME105685, 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
1083880926
Name
Nathaniel P. Fleischner
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
ME105685 FL
Self-reported in NPPES; status is on the state search
Practice location
11700 Okeechobee Blvd, Royal Palm Beach, FL 33411
Phone
(561) 790-0789
Enumerated
Apr 30, 2008
Record last updated
Jun 23, 2025
Fax
(855) 753-3317
Medicaid ID
001631600 FL
Medicare enrollment
Enrolled (PECOS I20091212000100); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 2005
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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8 nearest internal medicine physician records → All 10,151 in Florida → Look up another NPI →

Also registered at 11700 Okeechobee Blvd

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

  1. Sasha Baker, M.D.Internal Medicine Physician1972943454
  2. Elizabeth Fricke, ARNPFamily Nurse Practitioner1366106486
  3. Gina Joseph, MDInternal Medicine Physician1346433737
  4. Sophia Padron, APRNFamily Nurse Practitioner1518592880
  5. William Stechschulte, D.OInternal Medicine Physician1306119540
  6. Danielle Stook, FNP-CFamily Nurse Practitioner1881667004

Verify Nathaniel P. Fleischner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license ME105685    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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2.7 times the Medicare Part D claims of the average internal medicine physician in 2024

8,447 Medicare Part D claims for 673 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 122 claims were for opioids.

  1. Nathaniel Fleischner8,447
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium416 claims
  2. Amlodipine Besylate327 claims
  3. Losartan Potassium279 claims
  4. Metformin Hcl229 claims
  5. Levothyroxine Sodium222 claims
  6. Lisinopril196 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: $157.40

8 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. 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. Nathaniel Fleischner$157.40
  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. Accountable Teaching Services LLCWellington, FL

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

Nathaniel P. Fleischner among 10,151 internal medicine physician records in Florida

Nathaniel P. Fleischner, M.D. 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 2008, is newer than 52% of them.

  • NPI issued2008 · 52% of these records are older, 44% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2005 · median 2004 among the 6,606 with a school on file
  • Record last updated2025 · 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).

7 internal medicine physician records list a practice address in Royal Palm Beach

They are 7 of the 749 NPPES records with a practice address in Royal Palm Beach, and 10,151 internal medicine physician records in Florida.

All 10,151 in Florida → Every provider in Royal Palm Beach → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sasha Baker, M.D.Royal Palm Beach, FL 334111972943454
  2. Herbert Danowit, MDWellington, FL 334111184608978
  3. Abelardo Escriba Omar, MDRoyal Palm Beach, FL 334111578051355
  4. Gina Joseph, MDRoyal Palm Beach, FL 334111346433737
  5. David Roman, MDRoyal Palm Beach, FL 334111518036748
  6. Aris Sahagian, MDRoyal Palm Beach, FL 334111548274962
  7. William Stechschulte, D.ORoyal Palm Beach, FL 334111306119540
  8. Erich Glenn Acebedo, MDPalm Beach Gardens, FL 334101609019918

Common questions

What is Nathaniel P. Fleischner, M.D.'s NPI number?

Nathaniel P. Fleischner, M.D.'s National Provider Identifier (NPI) is 1083880926, issued on Apr 30, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Nathaniel P. Fleischner, M.D. located?

The NPPES record lists a practice address at 11700 Okeechobee Blvd, Royal Palm Beach, FL, 33411. Phone: (561) 790-0789. Providers update this record themselves, so call before visiting.

How can I verify Nathaniel P. Fleischner, M.D.'s license?

NPPES lists Florida license number ME105685, 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 Nathaniel P. Fleischner, M.D. prescribe under Medicare Part D?

In 2024, Nathaniel P. Fleischner, M.D. had 8,447 Medicare Part D claims for 673 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.