NPI registry status
Active
2026 NPPES data Psychiatry Physician NPI 1861424988 MD
Verify on CMS → Thomas Bittker, MD
Psychiatry Physician in Reno, Nevada.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 53,171 in 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
387
Medicare Part D claims · 27 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$690.36
15 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
Thomas Bittker, MD filed 387 Medicare Part D claims in 2023 as a Psychiatry Physician in Reno, Nevada, prescribing 89% generic.
- 387
- Part D claims, 2023
- 89%
- 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.
Thomas Bittker, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
387 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
✓
Board certification likely (heuristic, not verified)
Thomas Bittker, 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 Thomas Bittker, MD?
Quality data not reportedPrimary specialty
Psychiatry Physician
Medicare Part D claims
387 63% vs specialty avg
Specialty distribution in Nevada
How Psychiatry Physician compares to other specialties among Nevada 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 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).
Thomas Bittker, MD appears in the CMS NPPES registry as a Psychiatry Physician provider holding MD credentials at 6151 LAKESIDE DRIVE, Reno, NV, 89511, with a listed phone of (775) 329-4284. NPI 1861424988 was issued on 07/07/2006.
Medicare Part D records for calendar year 2023 show 387 prescription claims written by this provider, covering 27 Medicare beneficiaries and totaling roughly $42K in drug spend, split 11% brand-name and 89% generic by claim count.
Psychiatry Physician is a high-volume specialty nationwide, with 53,171 enrolled providers across 56 states and an average of 1,038 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 | 1861424988 |
|---|---|
| Specialty | Psychiatry Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/07/2006 |
Hospital and facility affiliations
Facilities where Thomas Bittker, 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.
Reno Psychiatric Associates PLLC
Reno, NV
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 Thomas Bittker, MD. Source: openpaymentsdata.cms.gov.
Total received
$690
Largest payer
ABBVIE 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
Thomas Bittker, MD - brand share 11.0%
Psychiatry Physician average
11% brand-name claims vs 89% generic, on 387 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.
387
Total Claims
$42K
Total Drug Cost
27
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 644
- Total Day Supply
- 19,246
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $31K
- Generic Drug Cost
- $11K
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 1.19
- Gender Split
- 48% female / 52% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Thomas Bittker, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Duloxetine Hcl
Duloxetine Hcl
31 claims
- Memantine Hcl
Memantine Hcl
29 claims
- Armodafinil
Armodafinil
23 claims
- Buspirone Hcl
Buspirone Hcl
21 claims
- Trintellix
Trintellix
21 claims
- Memantine Hcl Er
Memantine Hcl Er
20 claims
- Quetiapine Fumarate
Quetiapine Fumarate
17 claims
- Zolpidem Tartrate
Zolpidem Tartrate
17 claims
| Drug | Claims |
|---|---|
| Duloxetine Hcl | 31 |
| Memantine Hcl | 29 |
| Armodafinil | 23 |
| Buspirone Hcl | 21 |
| Trintellix Vortioxetine Hydrobromide | 21 |
| Memantine Hcl Er Memantine Hcl | 20 |
| Quetiapine Fumarate | 17 |
| Zolpidem Tartrate | 17 |
| Bupropion Hcl Sr Bupropion Hcl | 16 |
| Aripiprazole | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Psychiatry Physician Overview
How Thomas Bittker, MD fits within the Psychiatry Physician landscape nationally.
53,171
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider
Thomas Bittker, MD's 387 claims are below the specialty average of 1,038.
Nearby Psychiatry Physician Providers in Nevada
Other clinicians with the same primary specialty enrolled in Nevada, drawn from the same CMS NPPES roster as Bittker.
Dr. Christine Grace Adol
PMHNP-BC
Henderson, NV
Dr. Rodger Agre
M.D.
Incline Village, NV
Dr. Vasudha Ahuja
MD
Sparks, NV
Dr. Adekunle Ajayi
M.D.
Las Vegas, NV
Dr. Margarita Akopian
DO
North Las Vegas, NV
Compare 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 Nevada medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby 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.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Thomas Bittker, MD's specialty? ▼
Thomas Bittker, MD specializes in Psychiatry Physician and practices in Reno, Nevada. Credentials: MD.
How much does Thomas Bittker, MD prescribe under Medicare Part D? ▼
In 2023, Thomas Bittker, MD wrote 387 Medicare Part D claims totaling $42K in drug costs for 27 beneficiaries.
Where is Thomas Bittker, MD located? ▼
Thomas Bittker, MD is located at 6151 LAKESIDE DRIVE, Reno, NV, 89511. Phone: (775) 329-4284.
What is Thomas Bittker, MD's NPI number? ▼
Thomas Bittker, MD's National Provider Identifier (NPI) is 1861424988, issued on 07/07/2006.
Does Thomas Bittker, MD prescribe more brand-name or generic drugs? ▼
Thomas Bittker, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $31K in brand drug costs.
How many Psychiatry Physician providers are there in the US? ▼
There are 53,171 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does Thomas Bittker, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Thomas Bittker, MD's most frequently prescribed drugs include Duloxetine Hcl, Memantine Hcl, Armodafinil. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Thomas Bittker, MD accept Medicare? ▼
Thomas Bittker, MD appears in CMS Medicare data with 387 Part D claims and 27 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Thomas Bittker, MD's credentials? ▼
Thomas Bittker, MD's NPI is 1861424988 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.