NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1144364753 MD
Verify on CMS → Leopoldo Arcilla, MD
Internal Medicine Physician in Mangilao, Guam.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 174,792 in Internal Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 109 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Leopoldo Arcilla, MD carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 2,856 Medicare Part D claims in 2024.
- 75/100
- CMS neutral score · not measured
- 3K
- Part D claims, 2024
- 91%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Leopoldo Arcilla, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1144364753), first enumerated 02/16/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 2,856 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
CMS assigned a neutral MIPS final score of 75/100 where no performance category was scored — not a measured quality rank.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1144364753 · Internal Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · MIPS-NEUTRAL · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1144364753
- ENUM-MID 2007
- TAX-MEGA 175K Internal Medicine
- MIPS-NEUTRAL 75/100
- RX-MID 2,856
- BOOK-THIN 31 in Guam
- PHOTO-ENUM Beth Madden, M.D. · 2007
Leopoldo Arcilla, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
2,856 ≥ 88th percentile 88% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Leopoldo Arcilla, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Leopoldo Arcilla, MD?
CMS neutral score, not measuredPrimary specialty
Internal Medicine Physician
Medicare Part D claims
2,856 3% vs specialty avg
MIPS final score
75/100
Specialty distribution in Guam
How Internal Medicine Physician compares to other specialties among Guam providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1144364753 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 02/16/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Individual
Brand vs generic prescribing mix · Generic-heavy
Leopoldo Arcilla, MD - brand share 7.0%
Internal Medicine Physician average
7% brand-name claims vs 91% generic, on 2,856 2024 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 2024.
2,856
Total Claims
$107K
Total Drug Cost
109
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,186
- Total Day Supply
- 92,832
- Brand vs Generic
- 7% brand / 91% generic
- Brand Drug Cost
- $70K
- Generic Drug Cost
- $37K
- Antibiotic Claims
- 41
Patient Demographics
- Average Patient Age
- 74.2 years
- Avg HCC Risk Score
- 1.03
- Gender Split
- 48% female / 52% male
- Age Distribution
- <65: 14, 65-74: 39, 75-84: 42, 85+: 14
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Leopoldo Arcilla, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Amlodipine Besylate
Amlodipine Besylate
311 claims
- Atorvastatin Calcium
Atorvastatin Calcium
218 claims
- Metformin Hcl
Metformin Hcl
136 claims
- Losartan-Hydrochlo…
Losartan-Hydrochlorothiazide
131 claims
- Metoprolol Succinate 119
Metoprolol Succinate
119 claims
- Losartan Potassium 106
Losartan Potassium
106 claims
- Glipizide 98
Glipizide
98 claims
- Rosuvastatin Calcium 87
Rosuvastatin Calcium
87 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 311 |
| Atorvastatin Calcium | 218 |
| Metformin Hcl | 136 |
| Losartan-Hydrochlorothiazide Losartan/Hydrochlorothiazide | 131 |
| Metoprolol Succinate | 119 |
| Losartan Potassium | 106 |
| Glipizide | 98 |
| Rosuvastatin Calcium | 87 |
| Atenolol | 78 |
| Nifedipine Er Nifedipine | 76 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Leopoldo Arcilla, MD fits within the Internal Medicine Physician landscape nationally.
174,792
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,785
Avg Claims per Provider
Leopoldo Arcilla, MD's 2,856 claims are above the specialty average of 2,785.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Arcilla, both outside Guam so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75 here).
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Internal Medicine Physician Providers in Guam
Other clinicians with the same primary specialty enrolled in Guam, drawn from the same CMS NPPES roster as Arcilla.
One of 31 Internal Medicine Physician providers enrolled in Guam, 5 are shown here.
Dr. Joleen Aguon
M.D.
Tamuning, GU
Dr. Makala Bascome
DO
Agana Heights, GU
Dr. Ellen Bez
MD
Tamuning, GU
Dr. Felix Cabrera
M.D.
Dededo, GU
Dr. Young Chang
MD
Tamuning, GU
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Leopoldo Arcilla, MD's specialty? ▼
Leopoldo Arcilla, MD specializes in Internal Medicine Physician and practices in Mangilao, Guam. Credentials: MD.
How much does Leopoldo Arcilla, MD prescribe under Medicare Part D? ▼
In 2024, Leopoldo Arcilla, MD wrote 2,856 Medicare Part D claims totaling $107K in drug costs for 109 beneficiaries.
What is Leopoldo Arcilla, MD's Medicare quality score? ▼
Leopoldo Arcilla, MD has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Leopoldo Arcilla, MD located? ▼
Leopoldo Arcilla, MD is located at 123 CHALAN KARETA, Mangilao, GU, 96913. Phone: (671) 635-7400.
What is Leopoldo Arcilla, MD's NPI number? ▼
Leopoldo Arcilla, MD's National Provider Identifier (NPI) is 1144364753, issued on 02/16/2007.
Does Leopoldo Arcilla, MD prescribe more brand-name or generic drugs? ▼
Leopoldo Arcilla, MD's prescribing is 7% brand-name and 91% generic drugs by claim count, with $70K in brand drug costs.
How many Internal Medicine Physician providers are there in the US? ▼
There are 174,792 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,785 Medicare Part D claims per year.
What drugs does Leopoldo Arcilla, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Leopoldo Arcilla, MD's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Leopoldo Arcilla, MD accept Medicare? ▼
Leopoldo Arcilla, MD appears in CMS Medicare data with 2,856 Part D claims and 109 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Leopoldo Arcilla, MD's credentials? ▼
Leopoldo Arcilla, MD's NPI is 1144364753 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
View source datasets and methodology notes
- 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.