KARLA CASTRO-FRENZEL M.D.
NPI 1245228378
Anesthesiology - Pediatric Anesthesiology in Orlando, FL

Active since October 12, 2005PECOS EnrolledAccepts Medicare Assignment
52 UNDERWOOD ST, ORLANDO, FL 32806(321) 527-7424(321) 843-2196 Get Directions Write a Review

NPPES record last updated: July 1, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Karla Castro-frenzel M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KARLA CASTRO-FRENZEL M.D. (NPI 1245228378) is an individual pediatric anesthesiology provider in Orlando, Florida, licensed in Florida (ME122251) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS, maintains a secondary practice location in Orlando, and is a graduate of Other (2000).

NPPES Registry Identity

NPI1245228378
Entity TypeIndividualFemale
Primary Taxonomy207LP3000X
Provider Legal NameKARLA CASTRO-FRENZELCredential: M.D.
Location Address52 UNDERWOOD STOrlando, FL 32806-1110
Mailing Address52 Underwood StOrlando, FL 32806-1110 · (321) 527-7424 · Fax (321) 843-2196
Fax(321) 843-2196
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateOctober 12, 2005
Last NPPES UpdateJuly 1, 2025
NPPES CertifiedJuly 1, 2025
NPI 1245228378 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyAnesthesiology · Pediatric AnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207LP3000X
License Licensed in FL · ME122251
Definition
An anesthesiologist who has had additional skill and experience in and is primarily concerned with the anesthesia, sedation, and pain management needs of infants and children. A pediatric anesthesiologist generally provides services including the evaluation of complex medical problems in infants and children when surgery is necessary, planning and care for children before and after surgery, pain control, anesthesia and sedation for any procedures out of the operating room such as MRI, CT scan, and radiation therapy.
Also ListedAnesthesiologyTaxonomy 207L00000X · License 236556 (NY), ME122251 (FL)
52 UNDERWOOD ST, Orlando, FL 32806

Secondary Practice Location 1

Location 113535 Nemours Pkwy, Nemours Childrens HospitalOrlando, FL 32827-7402 · Phone (407) 650-7646 · Fax (407) 650-7089

Other Identifiers 2

Medicaid02669529NY
Medicaid014176000FL

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Karla Castro-frenzel M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5294760591
PECOS Enrollment IDI20150227002076
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32806 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.04 typical visit price
range $56.00 – $171.84
Typical copayment $32.51 (range $14.00 – $42.96)
Most-billed visit code 99204
Established Patient
$70.04 typical visit price
range $17.57 – $139.16
Typical copayment $17.51 (range $4.39 – $34.79)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine
52 UNDERWOOD ST
ORLANDO, FL 32806
Radiology (Diagnostic Radiology)
52 UNDERWOOD ST
ORLANDO, FL 32806
Internal Medicine
52 UNDERWOOD ST
ORLANDO, FL 32806
Internal Medicine
52 UNDERWOOD ST
ORLANDO, FL 32806
Family Medicine
52 UNDERWOOD ST
ORLANDO, FL 32806
Internal Medicine
52 UNDERWOOD ST
ORLANDO, FL 32806
Internal Medicine
52 UNDERWOOD ST
ORLANDO, FL 32806
Nurse Practitioner (Adult Health)
52 UNDERWOOD ST
ORLANDO, FL 32806

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karla Castro-frenzel's NPI number?

The NPI number for Karla Castro-frenzel is 1245228378. It was assigned to this individual provider in the NPPES registry on October 12, 2005.

Where is Karla Castro-frenzel located?

Karla Castro-frenzel practices at 52 Underwood St, Orlando, FL 32806. The listed phone number is (321) 527-7424.

What is Karla Castro-frenzel's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pediatric Anesthesiology, with taxonomy code 207LP3000X.

Is Karla Castro-frenzel enrolled in Medicare?

Yes. Karla Castro-frenzel is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Karla Castro-frenzel accept?

Health plans from Molina Healthcare list Karla Castro-frenzel as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Karla Castro-frenzel was last updated on July 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.