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MACY MARTINSON MD
NPI 1881919348
Internal Medicine - Nephrology in Hilo, HI

Active since March 28, 2010PECOS EnrolledAccepts Medicare Assignment
633 PONAHAWAI ST STE 103, HILO, HI 96720(808) 481-2300(808) 481-2301 Get Directions Write a Review

NPPES record last updated: September 25, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 7, 2023, Jun 30, 2021, Mar 3, 2016 (3 updates tracked since 2016).

About Macy Martinson Md NPPES

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

MACY MARTINSON MD (NPI 1881919348) is an individual nephrology provider in Hilo, Hawaii, licensed in Hawaii (MD-23479) and active in the NPI registry since March 2010. She is enrolled in Medicare PECOS, is affiliated with Hilo Medical Center, and maintains a secondary practice location in Portland.

NPPES Registry Identity

NPI1881919348
Entity TypeIndividualFemale
Primary Taxonomy207RN0300X
Provider Legal NameMACY MARTINSONCredential: MD
Location Address633 PONAHAWAI ST STE 103Hilo, HI 96720-7601
Mailing AddressPo Box 3068Portland, OR 97208-3068 · (503) 229-7976 · Fax (503) 274-4767
Phone(808) 481-2300
Fax(808) 481-2301
Sole ProprietorNo
Medical School CMSWest Virginia University School Of MedicineGraduated 2010
Enumeration DateMarch 28, 2010
Last NPPES UpdateSeptember 25, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 25, 2025
✔ NPI 1881919348 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Licenses✔ Licensed in HI · MD-23479✔ Licensed in OR · MD171945✔ Licensed in WA · MD60548636
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
633 PONAHAWAI ST STE 103, Hilo, HI 96720
Open in Google Maps ↗

Secondary Practice Location 1

Location 11130 NW 22nd Avenue, Ste 640Portland, OR 97210-2900 · Phone (503) 229-7976 · Fax (503) 274-4767

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, HMSA, PacificSource Health Plans and more.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

Macy Martinson Md 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 ID9931340304
PECOS Enrollment IDI20230912004384
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 5

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
163 services35 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.
107 services51 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.
50 services50 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
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.
28 services14 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
12 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Hilo Medical Center

Acute Care Hospitals · Hilo, HI
2/5 CMS rating
OwnershipGovernment - State
CMS Certification Number120005
Location1190 Waianuenue AvenueHilo, HI 96720 · Hawaii County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96720 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
$136.68 typical visit price
range $60.53 – $180.05
Typical copayment $34.17 (range $15.13 – $45.01)
Most-billed visit code 99204
Established Patient
$105.65 typical visit price
range $20.09 – $147.56
Typical copayment $26.41 (range $5.02 – $36.89)
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 7

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

Azathioprine, oral, 50 mg J7500
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers23 claims690 services$0.81 avg. paid by Medicare
Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
6 suppliers117 claims14,319 services$0.31 avg. paid by Medicare
Prednisone, immediate release or delayed release, oral, 1 mg J7512
Treatment-Treatment - Miscellaneous · category RX029N
6 suppliers97 claims13,710 services$0.01 avg. paid by Medicare
Mycophenolate mofetil, oral, 250 mg J7517
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers39 claims5,760 services$0.20 avg. paid by Medicare
Mycophenolic acid, oral, 180 mg J7518
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers25 claims6,000 services$1.00 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
8 suppliers110 claims110 services$18.60 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 Macy Martinson's NPI number?

The NPI number for Macy Martinson is 1881919348. It was assigned to this individual provider in the NPPES registry on March 28, 2010.

Where is Macy Martinson located?

Macy Martinson practices at 633 Ponahawai St Ste 103, Hilo, HI 96720. The listed phone number is (808) 481-2300.

What is Macy Martinson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Macy Martinson enrolled in Medicare?

Yes. Macy Martinson 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 Macy Martinson accept?

Health plans from BridgeSpan Health Company, HMSA, PacificSource Health Plans and Regence BlueCross BlueShield of Oregon list Macy Martinson 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.

Is Macy Martinson affiliated with any hospitals?

According to CMS data, Macy Martinson is affiliated with Hilo Medical Center.

When was this NPI record last updated?

The NPPES record for Macy Martinson was last updated on September 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.