NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1215590336 CRNP
Verify on CMS → Carlos Barrero, CRNP
Family Nurse Practitioner in Baltimore, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 210,832 in Family Nurse Practitioner, 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 · 192 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
80%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$67.29
3 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Carlos Barrero, CRNP filed 2,529 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Baltimore, Maryland, prescribing 80% generic.
- 3K
- Part D claims, 2023
- 80%
- generic prescribing
- $67.29
- industry payments (Sunshine Act)
- ≥87th
- pct by Part D claim volume (lower-bound band)
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 Carlos Barrero, CRNP
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 1215590336), first enumerated 04/15/2019.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 2,529 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$67.29 in reported industry payments (3 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1215590336 · Family Nurse Practitioner
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1215590336
- ENUM-RECENT 2019
- TAX-MEGA 211K Family Nurse
- RX-MID 2,529
- BOOK-LIGHT 3,863 in Maryland
- PHOTO-ENUM Brandon Glissmeyer · 2019
Carlos Barrero, CRNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,529 ≥ 87th percentile 87% of 1,370,886 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 · 2023
What does the federal data show about Carlos Barrero, CRNP?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
2,529 107% vs specialty avg
Specialty distribution in Maryland
How Family Nurse Practitioner compares to other specialties among Maryland 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 Nurse Practitioner. 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).
Practice Address
Provider Details
| NPI | 1215590336 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | CRNP |
| Gender | Male |
| NPI Issued | 04/15/2019 |
Hospital and facility affiliations
Facilities where Carlos Barrero, CRNP 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.
Medstar Medical Group II LLC
Glen Burnie, MD
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 Carlos Barrero, CRNP. Source: openpaymentsdata.cms.gov.
Total received
$67
Largest payer
Astellas Pharma US 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
Carlos Barrero, CRNP - brand share 19.0%
Family Nurse Practitioner average
19% brand-name claims vs 80% generic, on 2,529 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.
2,529
Total Claims
$300K
Total Drug Cost
192
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,312
- Total Day Supply
- 124,965
- Brand vs Generic
- 19% brand / 80% generic
- Brand Drug Cost
- $260K
- Generic Drug Cost
- $37K
- Opioid Claims
- 45 (1.8% rate)
- Antibiotic Claims
- 29
Patient Demographics
- Average Patient Age
- 64.8 years
- Avg HCC Risk Score
- 1.29
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 76, 65-74: 89, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Carlos Barrero, CRNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
229 claims
- Atorvastatin Calcium
Atorvastatin Calcium
168 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
155 claims
- Losartan Potassium
Losartan Potassium
107 claims
- Metoprolol Succinate 67
Metoprolol Succinate
67 claims
- Ibuprofen 66
Ibuprofen
66 claims
- Gabapentin 65
Gabapentin
65 claims
- Hydrochlorothiazide 63
Hydrochlorothiazide
63 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 229 |
| Atorvastatin Calcium | 168 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 155 |
| Losartan Potassium | 107 |
| Metoprolol Succinate | 67 |
| Ibuprofen | 66 |
| Gabapentin | 65 |
| Hydrochlorothiazide | 63 |
| Lisinopril | 57 |
| Metformin Hcl | 54 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Carlos Barrero, CRNP fits within the Family Nurse Practitioner landscape nationally.
210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Carlos Barrero, CRNP's 2,529 claims are above the specialty average of 1,222.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Barrero, both outside Maryland so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2019)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Nurse Practitioner Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Barrero.
One of 3,863 Family Nurse Practitioner providers enrolled in Maryland, 5 are shown here.
Kanisha Aaron
Owings Mills, MD
Dr. Nicole Aaron
CRNP
Queenstown, MD
Dr. Naomi Abaga
CRNP
Baltimore, MD
Dr. Kristen Abbott
CRNP
Berlin, MD
Dr. Mark Abbott
FNP
Elkridge, MD
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Carlos Barrero, CRNP's specialty? ▼
Carlos Barrero, CRNP specializes in Family Nurse Practitioner and practices in Baltimore, Maryland. Credentials: CRNP.
How much does Carlos Barrero, CRNP prescribe under Medicare Part D? ▼
In 2023, Carlos Barrero, CRNP wrote 2,529 Medicare Part D claims totaling $300K in drug costs for 192 beneficiaries.
Where is Carlos Barrero, CRNP located? ▼
Carlos Barrero, CRNP is located at 1501 DIVISION ST, Baltimore, MD, 21217. Phone: (410) 383-8300.
What is Carlos Barrero, CRNP's NPI number? ▼
Carlos Barrero, CRNP's National Provider Identifier (NPI) is 1215590336, issued on 04/15/2019.
Does Carlos Barrero, CRNP prescribe more brand-name or generic drugs? ▼
Carlos Barrero, CRNP's prescribing is 19% brand-name and 80% generic drugs by claim count, with $260K in brand drug costs.
Does Carlos Barrero, CRNP prescribe opioids? ▼
Yes, Carlos Barrero, CRNP had 45 opioid claims in 2023 with an opioid prescribing rate of 1.8%.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Carlos Barrero, CRNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Carlos Barrero, CRNP's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Carlos Barrero, CRNP accept Medicare? ▼
Carlos Barrero, CRNP appears in CMS Medicare data with 2,529 Part D claims and 192 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Carlos Barrero, CRNP's credentials? ▼
Carlos Barrero, CRNP's NPI is 1215590336 with credentials CRNP. 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.