NPI registry status
Active
2026 NPPES data Surgical Critical Care Physician NPI 1619072949 MD
Verify on CMS → Guillermo Bolanos, MD
Surgical Critical Care Physician in Ponce, 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 1,468 in Surgical Critical Care 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
565
Medicare Part D claims · 298 beneficiaries · Surgical Critical Care Physician avg: 86
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$16.9K
54 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Guillermo Bolanos, MD filed 565 Medicare Part D claims in 2023 as a Surgical Critical Care Physician in Ponce, Puerto Rico, prescribing 86% generic.
- 565
- Part D claims, 2023
- 86%
- 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.
Guillermo Bolanos, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
565 Top 34% higher than 66% 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 certification likely (heuristic, not verified)
Guillermo Bolanos, 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).
What does the federal data show about Guillermo Bolanos, MD?
Quality data not reportedPrimary specialty
Surgical Critical Care Physician
Medicare Part D claims
565 7× vs specialty avg
Specialty distribution in Puerto Rico
How Surgical Critical Care 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 Surgical Critical Care 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).
Guillermo Bolanos, MD appears in the CMS NPPES registry as a Surgical Critical Care Physician provider holding MD credentials at 909 AVE TITO CASTRO STE 723, Ponce, PR, 00716, with a listed phone of (787) 259-3355. NPI 1619072949 was issued on 09/13/2006.
Medicare Part D records for calendar year 2023 show 565 prescription claims written by this provider, covering 298 Medicare beneficiaries and totaling roughly $32K in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 10.6%.
Surgical Critical Care Physician is a narrow specialty nationwide, with 1,468 enrolled providers across 53 states and an average of 86 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 | 1619072949 |
|---|---|
| Specialty | Surgical Critical Care Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 09/13/2006 |
Hospital and facility affiliations
Facilities where Guillermo Bolanos, 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.
Bolanos Surgical Services Csp
Ponce, PR
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Guillermo Bolanos, MD. Source: openpaymentsdata.cms.gov.
Total received
$16.9K
Largest payer
INTUITIVE SURGICAL, INC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Typical
Guillermo Bolanos, MD - brand share 14.0%
Surgical Critical Care Physician average
14% brand-name claims vs 86% generic, on 565 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.
565
Total Claims
$32K
Total Drug Cost
298
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 610
- Total Day Supply
- 10,542
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $28K
- Generic Drug Cost
- $5K
- Opioid Claims
- 60 (10.6% rate)
- Antibiotic Claims
- 158
Patient Demographics
- Average Patient Age
- 69.1 years
- Avg HCC Risk Score
- 2.68
- Gender Split
- 48% female / 52% male
- Age Distribution
- <65: 83, 65-74: 109, 75-84: 88, 85+: 18
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Guillermo Bolanos, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Pantoprazole Sodium
Pantoprazole Sodium
67 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
52 claims
- Acetaminophen-Code…
Acetaminophen-Codeine
51 claims
- Gabapentin
Gabapentin
45 claims
- Ciprofloxacin Hcl
Ciprofloxacin Hcl
41 claims
- Ondansetron Hcl
Ondansetron Hcl
37 claims
- Metronidazole
Metronidazole
30 claims
- Xarelto 22
Xarelto
22 claims
| Drug | Claims |
|---|---|
| Pantoprazole Sodium | 67 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 52 |
| Acetaminophen-Codeine Acetaminophen With Codeine | 51 |
| Gabapentin | 45 |
| Ciprofloxacin Hcl | 41 |
| Ondansetron Hcl | 37 |
| Metronidazole | 30 |
| Xarelto Rivaroxaban | 22 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 18 |
| Sucralfate | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgical Critical Care Physician Overview
How Guillermo Bolanos, MD fits within the Surgical Critical Care Physician landscape nationally.
1,468
Surgical Critical Care Physician Providers in US
53
States with Surgical Critical Care Physician
86
Avg Claims per Provider
Guillermo Bolanos, MD's 565 claims are above the specialty average of 86.
Nearby Surgical Critical Care Physician Providers in Puerto Rico
Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as Bolanos.
Dr. Nelson Crespo Martinez
M.D.
Guaynabo, PR
Dr. Nydia De Soto
M.D.
San Juan, PR
Dr. Julio Peguero Rivera
M.D.
Santa Isabel, PR
Dr. Natalia Velez-Ramos
MD
San Juan, PR
Compare Surgical Critical Care 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 Surgical Critical Care 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.
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Frequently Asked Questions
What is Guillermo Bolanos, MD's specialty? ▼
Guillermo Bolanos, MD specializes in Surgical Critical Care Physician and practices in Ponce, Puerto Rico. Credentials: MD.
How much does Guillermo Bolanos, MD prescribe under Medicare Part D? ▼
In 2023, Guillermo Bolanos, MD wrote 565 Medicare Part D claims totaling $32K in drug costs for 298 beneficiaries.
Where is Guillermo Bolanos, MD located? ▼
Guillermo Bolanos, MD is located at 909 AVE TITO CASTRO STE 723, Ponce, PR, 00716. Phone: (787) 259-3355.
What is Guillermo Bolanos, MD's NPI number? ▼
Guillermo Bolanos, MD's National Provider Identifier (NPI) is 1619072949, issued on 09/13/2006.
Does Guillermo Bolanos, MD prescribe more brand-name or generic drugs? ▼
Guillermo Bolanos, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $28K in brand drug costs.
Does Guillermo Bolanos, MD prescribe opioids? ▼
Yes, Guillermo Bolanos, MD had 60 opioid claims in 2023 with an opioid prescribing rate of 10.6%.
How many Surgical Critical Care Physician providers are there in the US? ▼
There are 1,468 Surgical Critical Care Physician providers across 53 states in the US. The average Surgical Critical Care Physician provider writes 86 Medicare Part D claims per year.
What drugs does Guillermo Bolanos, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Guillermo Bolanos, MD's most frequently prescribed drugs include Pantoprazole Sodium, Amoxicillin-Clavulanate Potass, Acetaminophen-Codeine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Guillermo Bolanos, MD accept Medicare? ▼
Guillermo Bolanos, MD appears in CMS Medicare data with 565 Part D claims and 298 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Guillermo Bolanos, MD's credentials? ▼
Guillermo Bolanos, MD's NPI is 1619072949 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.