NPI registry status
Active
2026 NPPES data Medical Physician Assistant NPI 1861873937 PA-C
Verify on CMS → Gregory Crosby, PA-C
Medical Physician Assistant in Titusville, Florida.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 40,580 in Medical Physician Assistant, 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
367
Medicare Part D claims · 220 beneficiaries · Medical Physician Assistant avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Gregory Crosby, PA-C filed 367 Medicare Part D claims in 2023 as a Medical Physician Assistant in Titusville, Florida.
- 367
- 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.
Gregory Crosby, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
367 Top 43% higher than 57% 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
What does the federal data show about Gregory Crosby, PA-C?
Quality data not reportedPrimary specialty
Medical Physician Assistant
Medicare Part D claims
367 66% vs specialty avg
Specialty distribution in Florida
How Medical Physician Assistant compares to other specialties among Florida 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 Medical Physician Assistant. 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).
Gregory Crosby, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 951 N WASHINGTON AVE, Titusville, FL, 32796, with a listed phone of (321) 268-6111. NPI 1861873937 was issued on 06/15/2015.
Medicare Part D records for calendar year 2023 show 367 prescription claims written by this provider, covering 220 Medicare beneficiaries and totaling roughly $6K in drug spend.
Medical Physician Assistant is a mid-sized specialty nationwide, with 40,580 enrolled providers across 55 states and an average of 1,077 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 | 1861873937 |
|---|---|
| Specialty | Medical Physician Assistant |
| Credentials | PA-C |
| Gender | Male |
| NPI Issued | 06/15/2015 |
Hospital and facility affiliations
Facilities where Gregory Crosby, PA-C 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.
According to CMS billing records, Gregory Crosby, PA-C is affiliated with 3 Medicare-billing facilities.
Carespot OF Orlando Hsi Urgent Care LLC
Orlando, FL
Guidewell Emergency Medicine Doctors, LLC
Winter Park, FL
Sunshine Family Care LLC
Altamonte Springs, FL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Florida FLDOH 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 - they are NOT specific to Gregory Crosby, PA-C. To verify Gregory Crosby, PA-C's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases
FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
367
Total Claims
$6K
Total Drug Cost
220
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 383
- Total Day Supply
- 4,051
- Generic Drug Cost
- $3K
- Antibiotic Claims
- 199
Patient Demographics
- Average Patient Age
- 70.1 years
- Avg HCC Risk Score
- 1.41
- Gender Split
- 70% female / 30% male
- Age Distribution
- <65: 36, 65-74: 118, 75-84: 54, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Gregory Crosby, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Azithromycin
Azithromycin
86 claims
- Methylprednisolone
Methylprednisolone
45 claims
- Amoxicillin-Clavul… 31
Amoxicillin-Clavulanate Potass
31 claims
- Cephalexin 26
Cephalexin
26 claims
- Diclofenac Sodium 25
Diclofenac Sodium
25 claims
- Ciprofloxacin Hcl 14
Ciprofloxacin Hcl
14 claims
- Levofloxacin 11
Levofloxacin
11 claims
| Drug | Claims |
|---|---|
| Azithromycin | 86 |
| Methylprednisolone | 45 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 31 |
| Cephalexin | 26 |
| Diclofenac Sodium | 25 |
| Ciprofloxacin Hcl | 14 |
| Levofloxacin | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Medical Physician Assistant Overview
How Gregory Crosby, PA-C fits within the Medical Physician Assistant landscape nationally.
40,580
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider
Gregory Crosby, PA-C's 367 claims are below the specialty average of 1,077.
Nearby Medical Physician Assistant Providers in Florida
Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Crosby.
Dr. Eden Abad
M.D.
Marianna, FL
Dr. Megan Abad
PA
Sarasota, FL
Dr. Jose Abay
PA
Miami, FL
Dr. Aimee Abell
PA
The Villages, FL
Dr. Kaitlin Abers
PA-C
Fort Lauderdale, FL
Compare Medical Physician Assistant 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 Florida medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Medical Physician Assistant 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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Medical Specialties Explained
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Frequently Asked Questions
What is Gregory Crosby, PA-C's specialty? ▼
Gregory Crosby, PA-C specializes in Medical Physician Assistant and practices in Titusville, Florida. Credentials: PA-C.
How much does Gregory Crosby, PA-C prescribe under Medicare Part D? ▼
In 2023, Gregory Crosby, PA-C wrote 367 Medicare Part D claims totaling $6K in drug costs for 220 beneficiaries.
Where is Gregory Crosby, PA-C located? ▼
Gregory Crosby, PA-C is located at 951 N WASHINGTON AVE, Titusville, FL, 32796. Phone: (321) 268-6111.
What is Gregory Crosby, PA-C's NPI number? ▼
Gregory Crosby, PA-C's National Provider Identifier (NPI) is 1861873937, issued on 06/15/2015.
How many Medical Physician Assistant providers are there in the US? ▼
There are 40,580 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does Gregory Crosby, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Gregory Crosby, PA-C's most frequently prescribed drugs include Azithromycin, Methylprednisolone, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gregory Crosby, PA-C accept Medicare? ▼
Gregory Crosby, PA-C appears in CMS Medicare data with 367 Part D claims and 220 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gregory Crosby, PA-C's credentials? ▼
Gregory Crosby, PA-C's NPI is 1861873937 with credentials PA-C. 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.