NPPES file of Aug 9, 2026

Alexander Ian Sherzer, M.D.

Internal Medicine Physician · Bonita Springs, FL

Alexander Ian Sherzer, M.D. is an internal medicine physician with a practice address in Bonita Springs, Florida, and NPI 1639364672, issued on Sep 12, 2007. Check the license on the Florida health license search; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1639364672
Name
Alexander Ian Sherzer
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
254408 NY
Self-reported in NPPES; status is on the state search
Practice location
9200 Bonita Beach RD SE, Bonita Springs, FL 34135
Phone
(239) 785-0262
Enumerated
Sep 12, 2007
Record last updated
Feb 26, 2020 (not updated in 6 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). 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 9200 Bonita Beach RD SE

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

  1. Steven Coleman, D.O.Internal Medicine Physician1134310444
  2. Jeffrey Holzinger, DDSGeneral Practice Dentistry1750559266
  3. Tami Kuhlman, M.D.Obstetrics & Gynecology Physician1306036405
  4. Kerriann Now, LMHCMental Health Counselor1972211852
  5. Roger Pint, D.M.D. M.P.H.General Practice Dentistry1104070770

Verify Alexander Ian Sherzer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license searchCheck 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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Alexander Ian Sherzer among 10,151 internal medicine physician records in Florida

Alexander Ian Sherzer, 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 not. Its NPI, issued in 2007, is newer than 45% of them.

  • NPI issued2007 · 45% of these records are older, 48% newer
  • In a Medicare fileNo · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • 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).

21 internal medicine physician records list a practice address in Bonita Springs

They are 21 of the 643 NPPES records with a practice address in Bonita Springs, and 10,151 internal medicine physician records in Florida. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 10,151 in Florida → Every provider in Bonita Springs → Internal Medicine Physician nationwide →

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 Alexander Ian Sherzer, M.D.'s NPI number?

Alexander Ian Sherzer, M.D.'s National Provider Identifier (NPI) is 1639364672, issued on Sep 12, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Ian Sherzer, M.D. located?

The NPPES record lists a practice address at 9200 Bonita Beach RD SE, Bonita Springs, FL, 34135. Phone: (239) 785-0262. Providers update this record themselves, so call before visiting.

How can I verify Alexander Ian Sherzer, M.D.'s license?

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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.