NPPES file of Aug 9, 2026

Karla Castro-Frenzel, M.D.

Pediatric Anesthesiology Physician · Orlando, FL

Karla Castro-Frenzel, M.D. is a pediatric anesthesiology physician with a practice address in Orlando, Florida, and NPI 1245228378, issued on Oct 12, 2005. Check the license (Florida ME122251, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1245228378
Name
Karla Castro-Frenzel
Credential
M.D.
Primary taxonomy
Pediatric Anesthesiology Physician 207LP3000X
License numbers
ME122251 FL
236556 NY
Self-reported in NPPES; status is on the state search
Practice location
52 Underwood St, Orlando, FL 32806
Phone
(321) 527-7424
Enumerated
Oct 12, 2005
Record last updated
Jul 1, 2025
Fax
(321) 843-2196
Medicaid IDs
02669529 NY
014176000 FL
Medicare enrollment
Enrolled (PECOS I20150227002076); accepts Medicare assignment
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 pediatric anesthesiology physician records → All 130 in Florida → Look up another NPI →

Also registered at 52 Underwood St

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

  1. Shatha Aboaid, MDInternal Medicine Physician1215514526
  2. Victoria AbrahamAnesthesiologist Assistant1235013376
  3. Vincent Adair, MDStudent in an Organized Health Care Education/Training Program1639011414
  4. Srinivasan Adayapalam, M.D.Anesthesiology Physician1053392779
  5. Zainab AhmadEmergency Medicine Physician1558124271
  6. Mikhail Ahmed, MDStudent in an Organized Health Care Education/Training Program1144062068

Verify Karla Castro-Frenzel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license ME122251    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Orlando Health Medical Group IncOrlando, FL

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

Karla Castro-Frenzel among 130 pediatric anesthesiology physician records in Florida

Karla Castro-Frenzel, M.D. is one of 130 pediatric anesthesiology physician records with a practice address in Florida. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 98% newer
  • In a Medicare fileYes · 58% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated2000 · median 2004 among the 59 with a school on file
  • Record last updated2025 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP3000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Anesthesiology Physician providers in Florida

There are 130 pediatric anesthesiology physician records in Florida.

All 130 in Florida → Every provider in Orlando → Pediatric Anesthesiology Physician nationwide →

The 8 pediatric anesthesiology physician records with the nearest ZIP codes

  1. Iwona Bielawska, MDOrlando, FL 328061700856176
  2. Lisa Christensen, MDOrlando, FL 328061285743047
  3. Donald Felix, M.D.Orlando, FL 328061629147806
  4. Dara Green, MDOrlando, FL 328061710096573
  5. Susan Hussein, MDOrlando, FL 328061932167319
  6. Carol Klim, MDOrlando, FL 328061700995560
  7. Michael Marzouk, MDOrlando, FL 328061033155114
  8. Hamish Munro, MDOrlando, FL 328061871558015

Common questions

What is Karla Castro-Frenzel, M.D.'s NPI number?

Karla Castro-Frenzel, M.D.'s National Provider Identifier (NPI) is 1245228378, issued on Oct 12, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Karla Castro-Frenzel, M.D. located?

The NPPES record lists a practice address at 52 Underwood St, Orlando, FL, 32806. Phone: (321) 527-7424. Providers update this record themselves, so call before visiting.

How can I verify Karla Castro-Frenzel, M.D.'s license?

NPPES lists Florida license number ME122251, 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.

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.