2026 NPPES data Family Medicine Physician NPI 1922455054 MD
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JANUARY MAY ANDAYA, MD

Family Medicine Physician in AIEA, Hawaii. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 374 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: JANUARY MAY ANDAYA, MD is a Family Medicine Physician ([object Object]) practicing in AIEA, Hawaii with a Medicare Part D prescribing footprint of 3K claims across 374 beneficiaries — 12% brand-name prescribing .

What stands out: JANUARY MAY ANDAYA, MD filed 2,788 Medicare Part D claims in 2023 across AIEA, Hawaii. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JANUARY MAY ANDAYA, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

JANUARY MAY ANDAYA, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 05/18/2016

NPI 1922455054

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

2,788 18% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Hawaii

How Family Medicine Physician compares to other specialties among Hawaii providers

Hawaii providers

Family Medicine Physician share within Hawaii

1. Family Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Medicine Physician share within Hawaii

Specialty board-certification context

Estimated specialty board-certified rate — Family Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

JANUARY MAY ANDAYA, MD is a Family Medicine Physician provider practicing in AIEA, Hawaii, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1922455054. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JANUARY MAY ANDAYA, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 98-151 PALI MOMI ST STE 142, AIEA, HI, 96701, with a listed phone of (808) 483-6400. NPI 1922455054 was issued on 05/18/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANDAYA most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 2,788 prescription claims written by this provider, covering 374 Medicare beneficiaries and totaling roughly $310K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 1.2%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

98-151 PALI MOMI ST STE 142
AIEA, HI 96701

Provider Details

NPI 1922455054
Specialty Family Medicine Physician
Credentials MD
Gender Female
NPI Issued 05/18/2016

Hospital and facility affiliations

Facilities where JANUARY MAY ANDAYA, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

STRAUB CLINIC AND HOSPITAL
★★★★☆ 4/5
HONOLULU, HI
Acute Care Hospitals
CMS CCN: 120022

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Typical

JANUARY MAY ANDAYA, MD — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 2,788 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

2,788
Total Claims
$310K
Total Drug Cost
374
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,407
Total Day Supply
186,295
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$240K
Generic Drug Cost
$68K
Opioid Claims
34 (1.2% rate)
Antibiotic Claims
45

Patient Demographics

Average Patient Age
74.7 years
Avg HCC Risk Score
1.25
Gender Split
65% female / 35% male
Age Distribution
<65: 35, 65-74: 154, 75-84: 118, 85+: 67

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Atorvastatin Calcium
330
Losartan Potassium
184
Amlodipine Besylate
168
Metformin Hcl
108
Lisinopril
103
Albuterol Sulfate Hfa
Albuterol Sulfate
96
Levothyroxine Sodium
87
Metoprolol Succinate
80
Simvastatin
62
Gabapentin
57

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Family Medicine Physician Overview

How JANUARY MAY ANDAYA, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

JANUARY MAY ANDAYA, MD's 2,788 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Hawaii

Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as ANDAYA.

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JANUARY MAY ANDAYA, MD's specialty?
JANUARY MAY ANDAYA, MD specializes in Family Medicine Physician and practices in AIEA, Hawaii. Credentials: MD.
How much does JANUARY MAY ANDAYA, MD prescribe under Medicare Part D?
In 2023, JANUARY MAY ANDAYA, MD wrote 2,788 Medicare Part D claims totaling $310K in drug costs for 374 beneficiaries.
Where is JANUARY MAY ANDAYA, MD located?
JANUARY MAY ANDAYA, MD is located at 98-151 PALI MOMI ST STE 142, AIEA, HI, 96701. Phone: (808) 483-6400.
What is JANUARY MAY ANDAYA, MD's NPI number?
JANUARY MAY ANDAYA, MD's National Provider Identifier (NPI) is 1922455054, issued on 05/18/2016.
Does JANUARY MAY ANDAYA, MD prescribe more brand-name or generic drugs?
JANUARY MAY ANDAYA, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $240K in brand drug costs.
Does JANUARY MAY ANDAYA, MD prescribe opioids?
Yes, JANUARY MAY ANDAYA, MD had 34 opioid claims in 2023 with an opioid prescribing rate of 1.2%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does JANUARY MAY ANDAYA, MD prescribe most often?
Based on 2023 Medicare Part D data, JANUARY MAY ANDAYA, MD's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JANUARY MAY ANDAYA, MD accept Medicare?
JANUARY MAY ANDAYA, MD appears in CMS Medicare data with 2,788 Part D claims and 374 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JANUARY MAY ANDAYA, MD's credentials?
JANUARY MAY ANDAYA, MD's NPI is 1922455054 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology