KATHERINE ELIZABETH TWOMBLEY M.D.
NPI 1356532311
Pediatrics - Pediatric Nephrology in Jacksonville, FL

NPI Status: Active since August 06, 2007

Contact Information

807 CHILDRENS WAY
JACKSONVILLE, FL
ZIP 32207
Phone: (904) 697-3600
Fax: (904) 687-3927

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  • Individual
  • Female
  • Years of Experience 22
  • Pediatrics
  • Pediatric Nephrology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About KATHERINE TWOMBLEY

This page provides the complete NPI Profile along with additional information for Katherine Twombley, a pediatrician established in Jacksonville, Florida with a medical specialization in Pediatrics, focusing in pediatric nephrology and more than 22 years of experience. She graduated from Medical University Of South Carolina College Of Medicine in 2004. The healthcare provider is registered in the NPI registry with number 1356532311 assigned on August 2007. The practitioner's primary taxonomy code is 2080P0210X with license number ME175490 (FL). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1356532311
Provider Name
KATHERINE ELIZABETH TWOMBLEY M.D.
Gender
Female
Entity Type
Individual
Location Address
807 CHILDRENS WAY JACKSONVILLE, FL 32207
Location Phone
(904) 697-3600
Location Fax
(904) 687-3927
Mailing Address
10140 CENTURION PKWY N JACKSONVILLE, FL 32256
Mailing Phone
(904) 697-4100
Medical School Name
MEDICAL UNIVERSITY OF SOUTH CAROLINA COLLEGE OF MEDICINE
Graduation Year
2004
Is Sole Proprietor?
No
Enumeration Date
08-06-2007
Last Update Date
11-12-2025
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A pediatrician like Katherine Twombley is a physician who has completed a pediatric residency and is board-certified or board-eligible in a pediatric specialty. Pediatric care providers are trained to care for newborns, infants, children and adolescents. A pediatrician could perform physical exams, manage vaccinations, monitor development milestones, diagnose illnesses, infections, injuries or other health problems, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Pediatrics Pediatric Nephrology

Taxonomy Code
2080P0210X
Type
Allopathic & Osteopathic Physicians
License No.
ME175490
License State
FL
Taxonomy Description
A pediatrician who deals with the normal and abnormal development and maturation of the kidney and urinary tract, the mechanisms by which the kidney can be damaged, the evaluation and treatment of renal diseases, fluid and electrolyte abnormalities, hypertension and renal replacement therapy.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
12080P0210XAllopathic & Osteopathic Physicians

Pediatrics
Pediatric Nephrology

N6732 (TX)
22080P0210XAllopathic & Osteopathic Physicians

Pediatrics
Pediatric Nephrology

34967 (SC)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Elite Bronze - HMO
  • Elite Bronze + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Focused Silver - HMO
  • Standard Expanded Bronze - HMO
  • Standard Gold - HMO
  • Standard Silver - HMO
  • Standard Silver + Vision + Adult Dental - HMO
  • Clear Silver with $0 Insulin Options - HMO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Complete Gold with Atrium Health - HMO
  • Complete Gold with Atrium Health + Vision + Adult Dental - HMO
  • Elite Bronze - HMO
  • Elite Bronze + Vision + Adult Dental - HMO
  • Elite Bronze with Atrium Health - HMO
  • Elite Bronze with Atrium Health + Vision + Adult Dental - HMO
  • Enhanced Asthma/COPD Care Silver with $0 Drug Options - HMO
  • Blue Beaufort Bronze 1 - HMO
  • Blue Beaufort Bronze 2 - HMO
  • Blue Beaufort Gold 1 - HMO
  • Blue Beaufort Silver 1 - HMO
  • Blue Beaufort Silver 2 - HMO
  • Blue Beaufort Silver 2 + Adult Vision - HMO
  • Blue Beaufort Standard Expanded Bronze - HMO
  • Blue Beaufort Standard Gold - HMO
  • Blue Beaufort Standard Silver - HMO
  • Blue Congaree Bronze 1 - HMO
  • First Choice Next Bronze Essential - HMO
  • First Choice Next Bronze Premier - HMO
  • First Choice Next Bronze Signature - HMO
  • First Choice Next Gold Premier - HMO
  • First Choice Next Gold Signature - HMO
  • First Choice Next Silver Essential - HMO
  • First Choice Next Silver Premier - HMO
  • First Choice Next Silver Signature - HMO
  • BlueOptions Bronze (HSA) 24J01-10 (Rewards / $4 Condition Care Rx) - PPO
  • BlueOptions Bronze 24J01-04 (3 PCP Visits for $0 then $55 / $70 Specialist Visits / Rewards) - PPO
  • BlueOptions Bronze 24J01-06 (Rewards) - PPO
  • BlueOptions Bronze 24J01-17 ($50 PCP Visits / Rewards) - PPO
  • BlueOptions Bronze 24J01-18S ($50 PCP Visits / Rewards) - PPO
  • BlueOptions Gold 24J01-09 ($0 Deductible / $15 PCP Visits / $75 Specialist Visits / $20 Labs / Rewards) - PPO
  • BlueOptions Gold 24J01-12 ($40 PCP Visits / $75 Specialist Visits / $15 Labs / Rewards) - PPO
  • BlueOptions Gold 24J01-20S ($30 PCP Visits / $60 Specialist Visits / Rewards) - PPO
  • BlueOptions Platinum 24J01-05 ($0 Labs / $15 PCP Visits / $35 Specialist Visits / Rewards) - PPO
  • BlueOptions Platinum 24J01-08 ($0 Deductible / $0 Labs / $15 PCP Visits / $25 Specialist Visits / Rewards) - PPO
  • BlueCare Bronze (HSA) 24K01-09 (Rewards / $4 Condition Care Rx) - POS
  • BlueCare Bronze 24K01-03 (3 PCP Visits for $0 then $55 / $70 Specialist Visits / Rewards) - POS
  • BlueCare Bronze 24K01-05 (Rewards) - POS
  • BlueCare Bronze 24K01-25 ($50 PCP Visits / $75 Specialist Visits / Rewards) - POS
  • BlueCare Bronze 24K01-31S ($50 PCP Visits / Rewards) - POS
  • BlueCare Bronze 24K02-17 (3 PCP Visits for $0 then $55 / $70 Specialist Visits / Rewards) - POS
  • BlueCare Bronze 24K02-18 (Rewards) - POS
  • BlueCare Bronze 24K02-23 ($50 PCP Visits / $75 Specialist Visits / Rewards) - POS
  • BlueCare Bronze 24K02-26S ($50 PCP Visits / Rewards) - POS
  • BlueCare Gold 24K01-08 ($0 Deductible / $15 PCP Visits / $75 Specialist Visits / $20 Labs / Rewards) - POS
  • UHC Bronze Copay Focus $0 Indiv Med Ded - HMO
  • UHC Bronze Copay Focus+ $0 Indiv Med Ded (Dental + Vision) - HMO
  • UHC Bronze Essential - HMO
  • UHC Bronze Essential- - HMO
  • UHC Bronze Standard - HMO
  • UHC Bronze Standard Plus Chiro - HMO
  • UHC Gold Advantage - HMO
  • UHC Gold Advantage+ (Dental + Vision) - HMO
  • UHC Gold Copay Focus $0 Indiv Med Ded - HMO
  • UHC Gold Standard - HMO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Katherine Twombley is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Katherine Twombley is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 7618000555

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20120906000290

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Unknown

  • Treatment-Treatment - Miscellaneous (RX029N)

    Tacrolimus, immediate release, oral, 1 mg (HCPCS:J7507)

    3 DME suppliers used 78 Medicare Claims 9990 Services Paid

  • Treatment-Treatment - Miscellaneous (RX029N)

    Prednisone, immediate release or delayed release, oral, 1 mg (HCPCS:J7512)

    3 DME suppliers used 23 Medicare Claims 4480 Services Paid

  • Treatment-Treatment - Miscellaneous (RX029N)

    Mycophenolate mofetil, oral, 250 mg (HCPCS:J7517)

    3 DME suppliers used 38 Medicare Claims 7060 Services Paid

  • Treatment-Chemotherapy (RH012N)

    Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period (HCPCS:Q0511)

    3 DME suppliers used 54 Medicare Claims 54 Services Paid

  • Treatment-Chemotherapy (RH012N)

    Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period (HCPCS:Q0512)

    3 DME suppliers used 111 Medicare Claims 130 Services Paid

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Katherine Twombley is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
MUSC MEDICAL CENTER169 ASHLEY AVE
CHARLESTON, SC 29425
(843) 792-2300Acute Care Hospitals

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1356532311, we treat the final digit (1) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 49. The final step is to find the difference between that total and the next multiple of ten (50 - 49 = 1).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
3
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
6
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
3
Unchanged
Pos 7
2
Doubled → 4
Pos 8
3
Unchanged
Pos 9
1
Doubled → 2
Check
1
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 5 → 10 → 1 5 → 10 → 1 2 → 4 1 → 2

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 3 + 1 + 0 + 6 + 1 + 0 + 3 + 4 + 3 + 2 + 24 = 49

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 49 is 50. The difference is the calculated check digit.

50 - 49 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1356532311.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Otolaryngology (Pediatric Otolaryngology)
807 CHILDRENS WAY, NEMOURS CHILDRENS CLINIC, JACKSONVILLE
JACKSONVILLE, FL 32207
Psychologist (Clinical Child & Adolescent)
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Nurse Practitioner
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Urology
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Otolaryngology (Pediatric Otolaryngology)
807 CHILDRENS WAY, NEMOURS CHILDRENS CLINIC, JACKSONVILLE
JACKSONVILLE, FL 32207
Physician Assistant
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Optometrist (Pediatrics)
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Pediatrics (Pediatric Hematology-Oncology)
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Anesthesiology (Pediatric Anesthesiology)
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Audiologist
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Speech-Language Pathologist
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Urology (Pediatric Urology)
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Anesthesiology (Pediatric Anesthesiology)
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Anesthesiology (Pediatric Anesthesiology)
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Nurse Practitioner
807 CHILDRENS WAY
JACKSONVILLE, FL 32207
Ophthalmology
807 CHILDRENS WAY
JACKSONVILLE, FL 32207

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1356532311, enumerated as an "individual" on August 06, 2007.

The provider is located at 807 CHILDRENS WAY JACKSONVILLE, FL 32207 and the phone number is (904) 697-3600.

Pediatrics with taxonomy code 2080P0210X and a focus in Pediatric Nephrology.

The provider might be accepting Accepts: Ambetter from Absolute Total Care, Ambetter of. Please consult your insurance carrier or call the provider to verify.

Katherine Twombley is affiliated with: MUSC MEDICAL CENTER.