NPI registry status
Active
2026 NPPES data Child & Adolescent Psychiatry Physician NPI 1699748251 MD
Verify on CMS → Robert Mayer, MD
Child & Adolescent Psychiatry Physician in Largo, 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 6,164 in Child & Adolescent Psychiatry 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
4K
Medicare Part D claims · 164 beneficiaries · Child & Adolescent Psychiatry Physician avg: 600
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Robert Mayer, MD filed 3,883 Medicare Part D claims in 2023 as a Child & Adolescent Psychiatry Physician in Largo, Florida, prescribing 96% generic.
- 4K
- Part D claims, 2023
- 96%
- generic prescribing
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.
Robert Mayer, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,883 Top 9% higher than 91% 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)
Robert Mayer, 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 Robert Mayer, MD?
Quality data not reportedPrimary specialty
Child & Adolescent Psychiatry Physician
Medicare Part D claims
3,883 6× vs specialty avg
Specialty distribution in Florida
How Child & Adolescent Psychiatry Physician 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 Child & Adolescent Psychiatry 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).
Robert Mayer, MD appears in the CMS NPPES registry as a Child & Adolescent Psychiatry Physician provider holding MD credentials at 1100 CLEARWATER LARGO RD N, Largo, FL, 33770, with a listed phone of (727) 518-6444. NPI 1699748251 was issued on 02/13/2006.
Medicare Part D records for calendar year 2023 show 3,883 prescription claims written by this provider, covering 164 Medicare beneficiaries and totaling roughly $206K in drug spend, split 4% brand-name and 96% generic by claim count.
Child & Adolescent Psychiatry Physician is a mid-sized specialty nationwide, with 6,164 enrolled providers across 54 states and an average of 600 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 | 1699748251 |
|---|---|
| Specialty | Child & Adolescent Psychiatry Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 02/13/2006 |
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 Robert Mayer, MD. To verify Robert Mayer, MD'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.
Brand vs generic prescribing mix · Generic-heavy
Robert Mayer, MD - brand share 4.0%
Child & Adolescent Psychiatry Physician average
4% brand-name claims vs 96% generic, on 3,883 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.
3,883
Total Claims
$206K
Total Drug Cost
164
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,530
- Total Day Supply
- 135,178
- Brand vs Generic
- 4% brand / 96% generic
- Brand Drug Cost
- $99K
- Generic Drug Cost
- $107K
Patient Demographics
- Average Patient Age
- 64.2 years
- Avg HCC Risk Score
- 1.50
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 57, 65-74: 84, 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 Robert Mayer, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Alprazolam
Alprazolam
549 claims
- Dextroamphetamine-…
Dextroamphetamine-Amphetamine
231 claims
- Lorazepam
Lorazepam
220 claims
- Clonazepam 178
Clonazepam
178 claims
- Fluoxetine Hcl 172
Fluoxetine Hcl
172 claims
- Trazodone Hcl 167
Trazodone Hcl
167 claims
- Bupropion Xl 160
Bupropion Xl
160 claims
- Aripiprazole 159
Aripiprazole
159 claims
| Drug | Claims |
|---|---|
| Alprazolam | 549 |
| Dextroamphetamine-Amphetamine Dextroamphetamine/Amphetamine | 231 |
| Lorazepam | 220 |
| Clonazepam | 178 |
| Fluoxetine Hcl | 172 |
| Trazodone Hcl | 167 |
| Bupropion Xl Bupropion Hcl | 160 |
| Aripiprazole | 159 |
| Escitalopram Oxalate | 152 |
| Venlafaxine Hcl Er Venlafaxine Hcl | 125 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Child & Adolescent Psychiatry Physician in FL →
All providers in Florida →
Compare specialties →
Child & Adolescent Psychiatry Physician Overview
How Robert Mayer, MD fits within the Child & Adolescent Psychiatry Physician landscape nationally.
6,164
Child & Adolescent Psychiatry Physician Providers in US
54
States with Child & Adolescent Psychiatry Physician
600
Avg Claims per Provider
Robert Mayer, MD's 3,883 claims are above the specialty average of 600.
Nearby Child & Adolescent Psychiatry Physician Providers in Florida
Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Mayer.
Dr. Rosa Abraira
M.D.
Miami, FL
Dr. Efrain Acosta-Leon
MD
Stuart, FL
Dr. Alexander Adelsberger
D.O.
Fort Walton Beach, FL
Dr. Nasreen Akbar
M.D.
Tampa, FL
Dr. Alan Akinkugbe
M.D
Pensacola, FL
Compare Child & Adolescent Psychiatry 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 Florida medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Child & Adolescent Psychiatry 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 Robert Mayer, MD's specialty? ▼
Robert Mayer, MD specializes in Child & Adolescent Psychiatry Physician and practices in Largo, Florida. Credentials: MD.
How much does Robert Mayer, MD prescribe under Medicare Part D? ▼
In 2023, Robert Mayer, MD wrote 3,883 Medicare Part D claims totaling $206K in drug costs for 164 beneficiaries.
Where is Robert Mayer, MD located? ▼
Robert Mayer, MD is located at 1100 CLEARWATER LARGO RD N, Largo, FL, 33770. Phone: (727) 518-6444.
What is Robert Mayer, MD's NPI number? ▼
Robert Mayer, MD's National Provider Identifier (NPI) is 1699748251, issued on 02/13/2006.
Does Robert Mayer, MD prescribe more brand-name or generic drugs? ▼
Robert Mayer, MD's prescribing is 4% brand-name and 96% generic drugs by claim count, with $99K in brand drug costs.
How many Child & Adolescent Psychiatry Physician providers are there in the US? ▼
There are 6,164 Child & Adolescent Psychiatry Physician providers across 54 states in the US. The average Child & Adolescent Psychiatry Physician provider writes 600 Medicare Part D claims per year.
What drugs does Robert Mayer, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Robert Mayer, MD's most frequently prescribed drugs include Alprazolam, Dextroamphetamine-Amphetamine, Lorazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Mayer, MD accept Medicare? ▼
Robert Mayer, MD appears in CMS Medicare data with 3,883 Part D claims and 164 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Mayer, MD's credentials? ▼
Robert Mayer, MD's NPI is 1699748251 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.