NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1437379575 DOCTOR OF MEDICINE
Verify on CMS → Geoffrey Galgo, DOCTOR OF MEDICINE
Family Medicine Physician in Tamuning, 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 147,760 in Family 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
113
Medicare Part D claims · Family Medicine Physician avg: 3K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Geoffrey Galgo, DOCTOR OF MEDICINE filed 113 Medicare Part D claims in 2023 as a Family Medicine Physician in Tamuning, Guam, prescribing 90% generic.
- 113
- Part D claims, 2023
- 90%
- generic prescribing
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.
Geoffrey Galgo, DOCTOR OF MEDICINE's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
113 35th percentile higher than 35% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
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Board-eligible specialty (heuristic, not verified)
Geoffrey Galgo, DOCTOR OF MEDICINE practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Geoffrey Galgo, DOCTOR OF MEDICINE?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
113 97% vs specialty avg
Specialty distribution in Guam
How Family Medicine Physician compares to other specialties among Guam providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Medicine Physician. Verify directly:
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).
Geoffrey Galgo, DOCTOR OF MEDICINE appears in the CMS NPPES registry as a Family Medicine Physician provider holding DOCTOR OF MEDICINE credentials at 744 N MARINE DR, Tamuning, GU, 96913, with a listed phone of (671) 647-4174. NPI 1437379575 was issued on 04/30/2007.
Medicare Part D records for calendar year 2023 show 113 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $7K in drug spend, split 10% brand-name and 90% generic by claim count.
Family Medicine Physician is a high-volume specialty nationwide, with 147,760 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
Provider Details
| NPI | 1437379575 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | DOCTOR OF MEDICINE |
| Gender | Male |
| NPI Issued | 04/30/2007 |
Brand vs generic prescribing mix · Typical
Geoffrey Galgo, DOCTOR OF MEDICINE - brand share 10.0%
Family Medicine Physician average
10% brand-name claims vs 90% generic, on 113 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.
113
Total Claims
$7K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 132
- Total Day Supply
- 3,932
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $5K
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 69.0 years
- Avg HCC Risk Score
- 0.46
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Geoffrey Galgo, DOCTOR OF MEDICINE prescribes most
Top Medicare Part D drugs by claim count, 2023
- Lisinopril
Lisinopril
26 claims
- Metformin Hcl
Metformin Hcl
22 claims
- Atorvastatin Calcium
Atorvastatin Calcium
21 claims
- Glipizide Er
Glipizide Er
11 claims
| Drug | Claims |
|---|---|
| Lisinopril | 26 |
| Metformin Hcl | 22 |
| Atorvastatin Calcium | 21 |
| Glipizide Er Glipizide | 11 |
* 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 Geoffrey Galgo, DOCTOR OF MEDICINE fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Geoffrey Galgo, DOCTOR OF MEDICINE's 113 claims are below the specialty average of 3,418.
Nearby Family Medicine Physician Providers in Guam
Other clinicians with the same primary specialty enrolled in Guam, drawn from the same CMS NPPES roster as Galgo.
Dr. Arania Adolphson
MD
Dededo, GU
Dr. Vincent Akimoto
MD
Upper Tumon, GU
Dr. Ugochukwu Akoma
M.D.
Tamuning, GU
Dr. Yosselin Arroyo-Galvan
M.D
Agana Heights, GU
Dr. Mary Beckett
MD
Tamuning, GU
Compare Family Medicine Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Guam medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
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How insurance networks affect your costs
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Explore Guam
Frequently Asked Questions
What is Geoffrey Galgo, DOCTOR OF MEDICINE's specialty? ▼
Geoffrey Galgo, DOCTOR OF MEDICINE specializes in Family Medicine Physician and practices in Tamuning, Guam. Credentials: DOCTOR OF MEDICINE.
How much does Geoffrey Galgo, DOCTOR OF MEDICINE prescribe under Medicare Part D? ▼
In 2023, Geoffrey Galgo, DOCTOR OF MEDICINE wrote 113 Medicare Part D claims totaling $7K in drug costs for N/A beneficiaries.
Where is Geoffrey Galgo, DOCTOR OF MEDICINE located? ▼
Geoffrey Galgo, DOCTOR OF MEDICINE is located at 744 N MARINE DR, Tamuning, GU, 96913. Phone: (671) 647-4174.
What is Geoffrey Galgo, DOCTOR OF MEDICINE's NPI number? ▼
Geoffrey Galgo, DOCTOR OF MEDICINE's National Provider Identifier (NPI) is 1437379575, issued on 04/30/2007.
Does Geoffrey Galgo, DOCTOR OF MEDICINE prescribe more brand-name or generic drugs? ▼
Geoffrey Galgo, DOCTOR OF MEDICINE's prescribing is 10% brand-name and 90% generic drugs by claim count, with $5K in brand drug costs.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 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 Geoffrey Galgo, DOCTOR OF MEDICINE prescribe most often? ▼
Based on 2023 Medicare Part D data, Geoffrey Galgo, DOCTOR OF MEDICINE's most frequently prescribed drugs include Lisinopril, Metformin Hcl, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Geoffrey Galgo, DOCTOR OF MEDICINE accept Medicare? ▼
Geoffrey Galgo, DOCTOR OF MEDICINE appears in CMS Medicare data with 113 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Geoffrey Galgo, DOCTOR OF MEDICINE's credentials? ▼
Geoffrey Galgo, DOCTOR OF MEDICINE's NPI is 1437379575 with credentials DOCTOR OF MEDICINE. 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 (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
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 May 2026.