NPI registry status
Active
2026 NPPES data Gynecologic Oncology Physician NPI 1871530634 M.D.
Verify on CMS → Guilherme Cantuaria, M.D.
Gynecologic Oncology Physician in Atlanta, Georgia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,364 in Gynecologic Oncology 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
107
Medicare Part D claims · 41 beneficiaries · Gynecologic Oncology Physician avg: 188
Generic prescribing
72%
generic claims · 28% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$451.77
17 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
Guilherme Cantuaria, M.D. filed 107 Medicare Part D claims in 2023 as a Gynecologic Oncology Physician in Atlanta, Georgia, prescribing 72% generic.
- 107
- Part D claims, 2023
- 72%
- 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.
Guilherme Cantuaria, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
107 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
✓
Board certification likely (heuristic, not verified)
Guilherme Cantuaria, M.D. 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 Guilherme Cantuaria, M.D.?
Quality data not reportedPrimary specialty
Gynecologic Oncology Physician
Medicare Part D claims
107 43% vs specialty avg
Specialty distribution in Georgia
How Gynecologic Oncology Physician compares to other specialties among Georgia 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 Gynecologic Oncology 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).
Guilherme Cantuaria, M.D. appears in the CMS NPPES registry as a Gynecologic Oncology Physician provider holding M.D. credentials at 960 JOHNSON FERRY RD, Atlanta, GA, 30342, with a listed phone of (404) 300-2990. NPI 1871530634 was issued on 06/01/2006.
Medicare Part D records for calendar year 2023 show 107 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $300K in drug spend, split 28% brand-name and 72% generic by claim count, with an opioid prescribing rate of 23.4%.
Gynecologic Oncology Physician is a narrow specialty nationwide, with 1,364 enrolled providers across 49 states and an average of 188 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 | 1871530634 |
|---|---|
| Specialty | Gynecologic Oncology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/01/2006 |
Hospital and facility affiliations
Facilities where Guilherme Cantuaria, M.D. 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.
Northside Surgical Professional Services LLC
Atlanta, GA
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 Guilherme Cantuaria, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$452
Largest payer
GlaxoSmithKline, LLC.
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 · Above average
Guilherme Cantuaria, M.D. - brand share 28.0%
Gynecologic Oncology Physician average
28% brand-name claims vs 72% generic, on 107 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.
107
Total Claims
$300K
Total Drug Cost
41
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 138
- Total Day Supply
- 2,942
- Brand vs Generic
- 28% brand / 72% generic
- Brand Drug Cost
- $298K
- Generic Drug Cost
- $1K
- Opioid Claims
- 25 (23.4% rate)
Patient Demographics
- Average Patient Age
- 72.7 years
- Avg HCC Risk Score
- 1.92
- Gender Split
- 100% female / 0% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 16 |
| Zejula Niraparib Tosylate | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gynecologic Oncology Physician Overview
How Guilherme Cantuaria, M.D. fits within the Gynecologic Oncology Physician landscape nationally.
1,364
Gynecologic Oncology Physician Providers in US
49
States with Gynecologic Oncology Physician
188
Avg Claims per Provider
Guilherme Cantuaria, M.D.'s 107 claims are below the specialty average of 188.
Nearby Gynecologic Oncology Physician Providers in Georgia
Other clinicians with the same primary specialty enrolled in Georgia, drawn from the same CMS NPPES roster as Cantuaria.
Dr. Kevin Ault
M.D.
Atlanta, GA
Dr. Younes Bakri
MD
Macon, GA
Dr. Benedict Benigno
M.D.
Atlanta, GA
Dr. Joseph Boveri
M.D.
Atlanta, GA
Dr. Rachel Brightwell
MD
Lawrenceville, GA
Compare Gynecologic Oncology 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 Georgia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Gynecologic Oncology 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 Guilherme Cantuaria, M.D.'s specialty? ▼
Guilherme Cantuaria, M.D. specializes in Gynecologic Oncology Physician and practices in Atlanta, Georgia. Credentials: M.D..
How much does Guilherme Cantuaria, M.D. prescribe under Medicare Part D? ▼
In 2023, Guilherme Cantuaria, M.D. wrote 107 Medicare Part D claims totaling $300K in drug costs for 41 beneficiaries.
Where is Guilherme Cantuaria, M.D. located? ▼
Guilherme Cantuaria, M.D. is located at 960 JOHNSON FERRY RD, Atlanta, GA, 30342. Phone: (404) 300-2990.
What is Guilherme Cantuaria, M.D.'s NPI number? ▼
Guilherme Cantuaria, M.D.'s National Provider Identifier (NPI) is 1871530634, issued on 06/01/2006.
Does Guilherme Cantuaria, M.D. prescribe more brand-name or generic drugs? ▼
Guilherme Cantuaria, M.D.'s prescribing is 28% brand-name and 72% generic drugs by claim count, with $298K in brand drug costs.
Does Guilherme Cantuaria, M.D. prescribe opioids? ▼
Yes, Guilherme Cantuaria, M.D. had 25 opioid claims in 2023 with an opioid prescribing rate of 23.4%.
How many Gynecologic Oncology Physician providers are there in the US? ▼
There are 1,364 Gynecologic Oncology Physician providers across 49 states in the US. The average Gynecologic Oncology Physician provider writes 188 Medicare Part D claims per year.
What drugs does Guilherme Cantuaria, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Guilherme Cantuaria, M.D.'s most frequently prescribed drugs include Hydrocodone-Acetaminophen, Zejula. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Guilherme Cantuaria, M.D. accept Medicare? ▼
Guilherme Cantuaria, M.D. appears in CMS Medicare data with 107 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Guilherme Cantuaria, M.D.'s credentials? ▼
Guilherme Cantuaria, M.D.'s NPI is 1871530634 with credentials M.D.. 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.