NPPES file of Aug 9, 2026

Carla Joyce Nip Sakamoto, MD

Specialist · Honolulu, HI

Carla Joyce Nip Sakamoto, MD is a specialist with a practice address in Honolulu, Hawaii, and NPI 1932259264, issued on Jan 11, 2007. Check the license (Hawaii MD7839, as entered in NPPES) with the Hawaii board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1932259264
Name
Carla Joyce Nip Sakamoto
Credential
MD
Primary taxonomy
Specialist 174400000X
License number
MD7839 HI
Self-reported in NPPES; status is on the state search
Practice location
1329 Lusitana St, Honolulu, HI 96813
Phone
(808) 536-9888
Enumerated
Jan 11, 2007
Record last updated
Jun 24, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(808) 585-8450
Medicaid ID
509416 HI
Medicare enrollment
Enrolled (PECOS I20050928001237); accepts Medicare assignment
Medical or professional school
University Of Hawaii John A. Burns School Of Medicine, 1988
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1329 Lusitana St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Dennis Alvaro, PA-CMedical Physician Assistant1194746784
  2. Deryll Ambrocio, MDRheumatology Physician1730301219
  3. Randall Blake, M.D.Urology Physician1447226055
  4. Jenifer Bossert, O.D.Optometrist1598846669
  5. Lawrence Burgess, M.D.Otolaryngology/Facial Plastic Surgery Physician1689636953
  6. Jami Burns, M.D.Anesthesiology Physician1447586912

Verify Carla Joyce Nip Sakamoto in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Hawaii board licenses this profession
    Search for license MD7839
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Hawaii license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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47% fewer Medicare Part D claims than the average specialist in 2024

731 Medicare Part D claims for 334 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Carla Nip Sakamoto731
  2. Specialty average1,380

Most prescribed

  1. Mupirocin129 claims
  2. Triamcinolone Acetonide53 claims
  3. Ketoconazole52 claims
  4. Minoxidil48 claims
  5. Ammonium Lactate46 claims
  6. Mometasone Furoate38 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $1,556.33

60 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Carla Nip Sakamoto$1,556.33
  2. Specialty average$4,760.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Oahu Dermatology LLCHonolulu, HI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Carla Joyce Nip Sakamoto among 350 specialist records in Hawaii

Carla Joyce Nip Sakamoto, MD is one of 350 specialist records with a practice address in Hawaii. 26% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 45% newer
  • In a Medicare fileYes · 26% of these records are
  • In the CMS Doctors and Clinicians fileYes · 18% of these records are
  • Graduated1988 · median 1987 among the 64 with a school on file
  • Record last updated2011 · 81% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

156 specialist records list a practice address in Honolulu

They are 156 of the 12,408 NPPES records with a practice address in Honolulu, and 350 specialist records in Hawaii.

The 8 specialist records with the nearest ZIP codes

  1. Iqbal Ahmed, M.D.Honolulu, HI 968131164472650
  2. Ken Arakawa, M.D.Honolulu, HI 968131558334888
  3. Denny Bales, M.D.Honolulu, HI 968131023016383
  4. Barry Carlton, M.D.Honolulu, HI 968131790736544
  5. Marc Coel, M.D.Honolulu, HI 968131093784993
  6. Leslie Ito, M.D.Honolulu, HI 968131275596744
  7. Douglas Johnson, M.D.Honolulu, HI 968131700869427
  8. Jeffrey Lee, M.D.Honolulu, HI 968131629056528

Common questions

What is Carla Joyce Nip Sakamoto, MD's NPI number?

Carla Joyce Nip Sakamoto, MD's National Provider Identifier (NPI) is 1932259264, issued on Jan 11, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Carla Joyce Nip Sakamoto, MD located?

The NPPES record lists a practice address at 1329 Lusitana St, Honolulu, HI, 96813. Phone: (808) 536-9888. Providers update this record themselves, so call before visiting.

How can I verify Carla Joyce Nip Sakamoto, MD's license?

NPPES lists Hawaii license number MD7839, as entered by the provider. Search the Hawaii board that licenses this profession; the NPPES record confirms identity only.

How much does Carla Joyce Nip Sakamoto, MD prescribe under Medicare Part D?

In 2024, Carla Joyce Nip Sakamoto, MD had 731 Medicare Part D claims for 334 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.