DR. MARIKO KATHERINE JOHNSON M.D.
NPI 1629279617
Internal Medicine - Endocrinology, Diabetes & Metabolism in Honolulu, HI

Active since May 29, 2007PECOS EnrolledAccepts Medicare Assignment
1301 PUNCHBOWL ST, HONOLULU, HI 96813(808) 691-1000 Get Directions Write a Review

NPPES record last updated: August 21, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Mariko Katherine Johnson M.d. NPPES

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

DR. MARIKO KATHERINE JOHNSON M.D. (NPI 1629279617) is an individual endocrinology, diabetes & metabolism provider in Honolulu, Hawaii, licensed in Hawaii (MD-16098) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with The Queens Medical Center, and is a graduate of Columbia University College Of Physicians And Surgeons (2005).

NPPES Registry Identity

NPI1629279617
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameDR. MARIKO KATHERINE JOHNSONCredential: M.D.
Location Address1301 PUNCHBOWL STHonolulu, HI 96813-2499
Mailing Address1301 Punchbowl StHonolulu, HI 96813-2499 · (808) 691-1000
Sole ProprietorYes
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 2005
Enumeration DateMay 29, 2007
Last NPPES UpdateAugust 21, 2021
NPPES CertifiedAugust 21, 2021
NPI 1629279617 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License Licensed in HI · MD-16098
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedInternal MedicineTaxonomy 207R00000X · License 2005016358 (MO)
1301 PUNCHBOWL ST, Honolulu, HI 96813

Accepted 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

Dr. Mariko Katherine Johnson M.d. 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 ID9436320090
PECOS Enrollment IDI20110913000115
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 4

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.

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.
186 services114 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.
66 services12 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.
34 services34 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.
16 services16 patients

Hospital Affiliations CMS Care Compare 2

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

The Queens Medical Center

Acute Care Hospitals · Honolulu, HI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number120001
Location1301 Punchbowl StHonolulu, HI 96813 · Honolulu County
Emergency services Birthing friendly

North Hawaii Community Hospital, Inc

Acute Care Hospitals · Kamuela, HI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number120028
Location67 1125 Mamalahoa HighwayKamuela, HI 96743 · Hawaii County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96813 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.

Other Providers at the Same Location NPPES 20

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

Internal Medicine (Critical Care Medicine)
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Internal Medicine (Pulmonary Disease)
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Hospitalist
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Physician Assistant
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Psychiatric Hospital
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Specialist
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Physical Therapist
1301 PUNCHBOWL ST
HONOLULU, HI 96813
Psychiatry & Neurology (Psychiatry)
1301 PUNCHBOWL ST
HONOLULU, HI 96813

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 Mariko Johnson's NPI number?

The NPI number for Mariko Johnson is 1629279617. It was assigned to this individual provider in the NPPES registry on May 29, 2007.

Where is Mariko Johnson located?

Mariko Johnson practices at 1301 Punchbowl St, Honolulu, HI 96813. The listed phone number is (808) 691-1000.

What is Mariko Johnson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Mariko Johnson enrolled in Medicare?

Yes. Mariko Johnson 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 Mariko Johnson accept?

Health plans from HMSA list Mariko Johnson 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 Mariko Johnson affiliated with any hospitals?

According to CMS data, Mariko Johnson is affiliated with The Queens Medical Center and North Hawaii Community Hospital, Inc.

When was this NPI record last updated?

The NPPES record for Mariko Johnson was last updated on August 21, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.