GRANT S KEEFER MPAS, PA-C
NPI 1437739703
Physician Assistant in Lahaina, HI

Q: What is Grant Keefer's NPI number?

The NPI number for Grant Keefer is 1437739703. It was assigned to this individual provider in the NPPES registry on April 12, 2021.

Q: What is Grant Keefer's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for Grant Keefer was last updated on May 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

Active since April 12, 2021PECOS Enrolled

3350 LOWER HONOAPIILANI RD STE 211, LAHAINA, HI 96761(808) 667-7676 Get Directions Write a Review

NPPES record last updated: May 27, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: May 27, 2026, Apr 12, 2021 (2 updates tracked since 2021).

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About Grant S Keefer Mpas, Pa-c NPPES

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

GRANT S KEEFER MPAS, PA-C (NPI 1437739703) is an individual physician assistant in Lahaina, Hawaii and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Kihei, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1437739703

Entity TypeIndividualMale

Primary Taxonomy363A00000X

Provider Legal NameGRANT S KEEFERCredential: MPAS, PA-C

Location Address3350 LOWER HONOAPIILANI RD STE 211Lahaina, HI 96761-8404

Mailing Address3350 Lower Honoapiilani Rd Ste 211Lahaina, HI 96761-8404 · (817) 916-5199

Phone(808) 667-7676

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateApril 12, 2021

Last NPPES UpdateMay 27, 20262 updates tracked since enumeration

NPPES CertifiedMay 27, 2026

✔ NPI 1437739703 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

3350 LOWER HONOAPIILANI RD STE 211, Lahaina, HI 96761

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Secondary Practice Location 1

Location 13750 Wailea Alanui Dr Ste B34Kihei, HI 96753-8342 · Phone (808) 875-7676

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMSA.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Grant S Keefer Mpas, Pa-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5395144505

PECOS Enrollment IDI20220816002940

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.

Areas of Expertise CMS Part B claims 15

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

275 services45 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

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.

267 services267 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

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.

171 services135 patients

Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 87428

This test uses a method called immunoassay to identify severe acute respiratory syndrome coronavirus and influenza. It works by detecting specific proteins (antigens) in a sample, like a nasal swab. It's a powerful tool in diagnosing these viral infections.

102 services98 patients

Injection, ketorolac tromethamine, per 15 mg J1885

Ketorolac tromethamine is a medication administered through injection, often used to manage moderate to severe pain. Each 15 mg dose helps to reduce hormones causing inflammation and pain in the body. It is not recommended for long-term use.

100 services24 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

90 services65 patients

Injection, ceftriaxone sodium, per 250 mg J0696

Ceftriaxone sodium is an antibiotic injection used to treat a variety of bacterial infections. Each injection contains 250 mg of the medicine. It works by stopping the growth of bacteria in your body.

50 services11 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

37 services36 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

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.

33 services30 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

30 services30 patients

Detection test by immunoassay with direct visual observation for influenza virus 87804

This is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.

28 services14 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

21 services20 patients

Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 87880

A detection test by immunoassay for Group A Strep is a quick procedure to identify a bacterial infection in your throat. It involves taking a throat swab and applying it to a test strip, which changes color if Strep bacteria are present.

19 services19 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

15 services15 patients

Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen 87635

This is a lab test that detects the presence of COVID-19 in your body. It uses a technique to amplify the virus's genetic material, either DNA or RNA, making it easier to identify. A positive result indicates an active infection.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96761 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

$92.50 typical visit price

range $60.53 – $180.05

Typical copayment $23.12 (range $15.13 – $45.01)

Most-billed visit code 99203

Established Patient

$74.92 typical visit price

range $20.09 – $147.56

Typical copayment $18.73 (range $5.02 – $36.89)

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 3

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

VINCENT CHRISTIAN FUSSELL MD

Family Medicine

3350 LOWER HONOAPIILANI RD STE 211
LAHAINA, HI 96761

Maui County (808) 667-7676

KAANAPALI MEDICAL SERVICES INC

Clinic/Center (Primary Care)

3350 LOWER HONOAPIILANI RD STE 211
LAHAINA, HI 96761

Maui County (808) 667-7676

CATHERINE SCOTT PA - C

Physician Assistant

3350 LOWER HONOAPIILANI RD STE 211
LAHAINA, HI 96761

Maui County (808) 667-7676

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 Grant Keefer's NPI number?

The NPI number for Grant Keefer is 1437739703. It was assigned to this individual provider in the NPPES registry on April 12, 2021.

Where is Grant Keefer located?

Grant Keefer practices at 3350 Lower Honoapiilani Rd Ste 211, Lahaina, HI 96761. The listed phone number is (808) 667-7676.

What is Grant Keefer's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Grant Keefer enrolled in Medicare?

Yes. Grant Keefer is registered in the Medicare PECOS enrollment system.

What insurance does Grant Keefer accept?

Health plans from HMSA list Grant Keefer 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 Grant Keefer was last updated on May 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.