DR. DARREN ELTON DAY DPM
NPI 1356831820
Podiatrist - Foot & Ankle Surgery in Honolulu, HI

NPI Status: Active since May 10, 2018

Contact Information

1329 LUSITANA ST STE 801
HONOLULU, HI
ZIP 96813
Phone: (808) 536-4335
Fax: (808) 537-9195

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  • Individual
  • Male
  • Years of Experience 9
  • Podiatrist
  • Foot & Ankle Surgery
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About DARREN DAY

This page provides the complete NPI Profile along with additional information for Darren Day, a provider established in Honolulu, Hawaii with a medical specialization in Podiatrist, focusing in foot & ankle surgery and more than 9 years of experience. He graduated from Kent State University College Of Podiatric Medicine in 2018. The healthcare provider is registered in the NPI registry with number 1356831820 assigned on May 2018. The practitioner's primary taxonomy code is 213ES0103X with license number PO-236 (HI). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1356831820
Provider Name
DR. DARREN ELTON DAY DPM
Gender
Male
Entity Type
Individual
Location Address
1329 LUSITANA ST STE 801 HONOLULU, HI 96813
Location Phone
(808) 536-4335
Location Fax
(808) 537-9195
Mailing Address
1329 LUSITANA ST STE 801 HONOLULU, HI 96813
Mailing Phone
(808) 536-4335
Mailing Fax
(808) 537-9195
Medical School Name
KENT STATE UNIVERSITY COLLEGE OF PODIATRIC MEDICINE
Graduation Year
2018
Is Sole Proprietor?
Yes
Enumeration Date
05-10-2018
Last Update Date
11-12-2021
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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

Podiatrist Foot & Ankle Surgery

Taxonomy Code
213ES0103X
Type
Podiatric Medicine & Surgery Service Providers
License No.
PO-236
License State
HI

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)
1390200000XStudent, Health Care

Student in an Organized Health Care Education/Training Program

(OH)

Insurance Plans Accepted

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

  • HMSA Bronze PPO I - PPO
  • HMSA Bronze PPO II HSA - PPO
  • HMSA Catastrophic Plan - PPO
  • HMSA Gold PPO I - PPO
  • HMSA Gold PPO II - PPO
  • HMSA Platinum PPO - PPO
  • HMSA Silver PPO - PPO

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

Medicare Participation & PECOS Enrollment Status

Darren Day 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.

Darren Day 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) and a Home Health Agency (HHA).

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: 8123423852

    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: I20210818003511

    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: No

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 102 times for 41 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

This service was performed 48 times for 24 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

This service was performed 21 times for 18 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

This service was performed 30 times for 30 patients

Removal of fingernails or toenails, 6 or more nails

This procedure involves the removal of six or more fingernails or toenails. It's typically done to treat severe nail infections, persistent pain, or abnormal nail growth. Local anesthesia is used to minimize discomfort. Healing usually takes a few weeks.

This service was performed 40 times for 18 patients

Removal of fingernails or toenails, 6 or more nails

This procedure involves the removal of six or more fingernails or toenails. It's typically done to treat severe nail infections, persistent pain, or abnormal nail growth. Local anesthesia is used to minimize discomfort. Healing usually takes a few weeks.

This service was performed 57 times for 27 patients

Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes

An established patient home visit is a service where a healthcare professional visits your home for a 15-minute check-up. It's designed for patients who have previously seen the professional. The visit may include basic health assessments and discussions about your ongoing care.

This service was performed 39 times for 16 patients

Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes

An established patient home visit is a service where a healthcare professional visits your home for a 15-minute check-up. It's designed for patients who have previously seen the professional. The visit may include basic health assessments and discussions about your ongoing care.

This service was performed 21 times for 12 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

This service was performed 41 times for 11 patients

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. Darren Day is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
THE QUEENS MEDICAL CENTER1301 PUNCHBOWL ST
HONOLULU, HI 96813
(808) 538-9011Acute Care Hospitals
KAHUKU MEDICAL CENTER56-117 PUALALEA STREET
KAHUKU, HI 96731
(808) 293-9221Critical Access Hospitals

Reviews for DR. DARREN ELTON DAY DPM

  • 4 out of 5 stars - Review by Perry ***** on January 13, 2026

    From start to finish, Doc convinced me to have the surgery, and be patient with the recovering. Moving has been tough to follow up but I'm still mending. Mahalo Dr.Day'Day Peace and Blessings WiTchDokTa Mr Ghost ☠️☠️☠️

  • 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 1356831820, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

    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
    8
    Doubled → 16 → 1 + 6
    Pos 6
    3
    Unchanged
    Pos 7
    1
    Doubled → 2
    Pos 8
    8
    Unchanged
    Pos 9
    2
    Doubled → 4
    Check
    0
    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 8 → 16 → 7 1 → 2 2 → 4

    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 + 6 + 3 + 2 + 8 + 4 + 24 = 60

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

    The next multiple of ten after 60 is 60. The difference is the calculated check digit.

    60 - 60 = 0
    This NPI is valid
    The calculated check digit is 0, which matches the last digit of 1356831820.

    Other Providers at the Same Location


    The following 4 providers are registered at the same or a nearby location.

    Podiatrist (Foot Surgery)
    1329 LUSITANA ST STE 801
    HONOLULU, HI 96813
    Anesthesiology
    1329 LUSITANA ST STE 801
    HONOLULU, HI 96813
    Internal Medicine
    1329 LUSITANA ST STE 801
    HONOLULU, HI 96813
    Podiatrist (Foot Surgery)
    1329 LUSITANA ST STE 801
    HONOLULU, HI 96813

    Frequently Asked Questions

    The NPI number assigned to this healthcare provider is 1356831820, enumerated as an "individual" on May 10, 2018.

    The provider is located at 1329 LUSITANA ST STE 801 HONOLULU, HI 96813 and the phone number is (808) 536-4335.

    Podiatrist with taxonomy code 213ES0103X and a focus in Foot & Ankle Surgery.

    The provider might be accepting Accepts: HMSA. Please consult your insurance carrier or call the provider to verify.

    Darren Day is affiliated with: THE QUEENS MEDICAL CENTER and KAHUKU MEDICAL CENTER.