NPI registry status
Active
2026 NPPES data General Practice Physician NPI 1760016893 MD
Verify on CMS → Rhina Grullon, MD
General Practice Physician in Naguabo, Puerto Rico.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,725 in General Practice 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
736
Medicare Part D claims · 366 beneficiaries · General Practice Physician avg: 3K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Rhina Grullon, MD filed 736 Medicare Part D claims in 2023 as a General Practice Physician in Naguabo, Puerto Rico.
- 736
- Part D claims, 2023
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.
Rhina Grullon, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
736 Top 29% higher than 71% 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
◑
Board-eligible specialty (heuristic, not verified)
Rhina Grullon, MD 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 Rhina Grullon, MD?
Quality data not reportedPrimary specialty
General Practice Physician
Medicare Part D claims
736 74% vs specialty avg
Specialty distribution in Puerto Rico
How General Practice Physician compares to other specialties among Puerto Rico 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 General Practice 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).
Rhina Grullon, MD appears in the CMS NPPES registry as a General Practice Physician provider holding MD credentials at CALLE ANTONIO RIOS #37, Naguabo, PR, 00718, with a listed phone of (787) 719-6603. NPI 1760016893 was issued on 02/27/2020.
Medicare Part D records for calendar year 2023 show 736 prescription claims written by this provider, covering 366 Medicare beneficiaries and totaling roughly $48K in drug spend.
General Practice Physician is a mid-sized specialty nationwide, with 16,725 enrolled providers across 56 states and an average of 2,872 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 | 1760016893 |
|---|---|
| Specialty | General Practice Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 02/27/2020 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
736
Total Claims
$48K
Total Drug Cost
366
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 824
- Total Day Supply
- 13,794
- Generic Drug Cost
- $12K
- Antibiotic Claims
- 171
Patient Demographics
- Average Patient Age
- 69.6 years
- Avg HCC Risk Score
- 1.62
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 98, 65-74: 148, 75-84: 91, 85+: 29
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Rhina Grullon, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ketorolac Trometha…
Ketorolac Tromethamine
48 claims
- Methylprednisolone
Methylprednisolone
46 claims
- Clindamycin Hcl
Clindamycin Hcl
45 claims
- Ciprofloxacin Hcl
Ciprofloxacin Hcl
33 claims
- Dexamethasone
Dexamethasone
31 claims
- Metronidazole
Metronidazole
24 claims
- Mometasone Furoate
Mometasone Furoate
21 claims
- Azithromycin 19
Azithromycin
19 claims
| Drug | Claims |
|---|---|
| Ketorolac Tromethamine | 48 |
| Methylprednisolone | 46 |
| Clindamycin Hcl | 45 |
| Ciprofloxacin Hcl | 33 |
| Dexamethasone | 31 |
| Metronidazole | 24 |
| Mometasone Furoate | 21 |
| Azithromycin | 19 |
| Ondansetron Hcl | 19 |
| Oseltamivir Phosphate | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
General Practice Physician Overview
How Rhina Grullon, MD fits within the General Practice Physician landscape nationally.
16,725
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider
Rhina Grullon, MD's 736 claims are below the specialty average of 2,872.
Nearby General Practice Physician Providers in Puerto Rico
Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as Grullon.
Dr. Veronica Abraham
MD
San Juan, PR
Dr. Manuel Abraham Gonzalez
M.D.
San Juan, PR
Dr. Jennifer Abraham Vega
MD
San Juan, PR
Dr. Jose M. Abreu Guzman
M.D.
Manati, PR
Dr. Steven Abreu Reyes
M.D.
Las Piedras, PR
Compare General Practice 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 Puerto Rico medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby General Practice 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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How to Find a Doctor
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Puerto Rico
Frequently Asked Questions
What is Rhina Grullon, MD's specialty? ▼
Rhina Grullon, MD specializes in General Practice Physician and practices in Naguabo, Puerto Rico. Credentials: MD.
How much does Rhina Grullon, MD prescribe under Medicare Part D? ▼
In 2023, Rhina Grullon, MD wrote 736 Medicare Part D claims totaling $48K in drug costs for 366 beneficiaries.
Where is Rhina Grullon, MD located? ▼
Rhina Grullon, MD is located at CALLE ANTONIO RIOS #37, Naguabo, PR, 00718. Phone: (787) 719-6603.
What is Rhina Grullon, MD's NPI number? ▼
Rhina Grullon, MD's National Provider Identifier (NPI) is 1760016893, issued on 02/27/2020.
How many General Practice Physician providers are there in the US? ▼
There are 16,725 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does Rhina Grullon, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Rhina Grullon, MD's most frequently prescribed drugs include Ketorolac Tromethamine, Methylprednisolone, Clindamycin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rhina Grullon, MD accept Medicare? ▼
Rhina Grullon, MD appears in CMS Medicare data with 736 Part D claims and 366 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rhina Grullon, MD's credentials? ▼
Rhina Grullon, MD's NPI is 1760016893 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 (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
Compiled from official public sources by the PlainDoctor editorial team.
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.