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DR. KAREN WATTS MCCARTHY M.D.
NPI 1831125871
Internal Medicine in Jacksonville, FL

Active since June 23, 2006PECOS Enrolled
905 BEACH BOULEVARD, JACKSONVILLE, FL 32250(904) 241-8300(904) 241-0831 Get Directions Write a Review

NPPES record last updated: July 7, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Karen Watts Mccarthy M.d. NPPES

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

DR. KAREN WATTS MCCARTHY M.D. (NPI 1831125871) is an individual internal medicine provider in Jacksonville, Florida, licensed in Florida (ME05537) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1831125871
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. KAREN WATTS MCCARTHYCredential: M.D.
Location Address905 BEACH BOULEVARDJacksonville, FL 32250
Mailing Address905 Beach BlvdJacksonville, FL 32250-4303 · (904) 241-8300 · Fax (904) 241-0831
Phone(904) 241-8300
Fax(904) 241-0831
Sole ProprietorNo
Enumeration DateJune 23, 2006
Last NPPES UpdateJuly 7, 2011
✔ NPI 1831125871 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in FL · ME05537
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
905 BEACH BOULEVARD, Jacksonville, FL 32250
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Other Identifiers 5

Other110044594FL · Medicare Railroad
Medicare UPINE58452FL
Medicare ID-Type Unspecified34360FL · Group Number
Medicaid05178100FL
Other10942FL · Bcbs

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Karen Watts Mccarthy M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Karen Mccarthy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Jorge A Aguilar MD PA
Same address
Internal Medicine
905 BEACH BLVD
Jacksonville Beach, FL 32250
  • Reassigned Medicare billing, Florida enrollment
  • 5 clinicians in this Medicare group
NPI 1003874553 (904) 241-8300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32250 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
$99.16 typical visit price
range $17.57 – $139.16
Typical copayment $24.79 (range $4.39 – $34.79)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$14.45 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers13 claims14 services$67.72 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier12 claims12 services$200.12 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Karen Mccarthy's NPI number?

The NPI number for Karen Mccarthy is 1831125871. It was assigned to this individual provider in the NPPES registry on June 23, 2006.

Where is Karen Mccarthy located?

Karen Mccarthy practices at 905 Beach Boulevard, Jacksonville, FL 32250. The listed phone number is (904) 241-8300.

What is Karen Mccarthy's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Karen Mccarthy enrolled in Medicare?

Yes. Karen Mccarthy is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Karen Mccarthy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Mccarthy reassigns Medicare benefits to Jorge A Aguilar MD PA (Jacksonville Beach, FL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karen Mccarthy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Karen Mccarthy was last updated on July 7, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.