NPI registry status
Active
2026 NPPES data Neuromuscular Medicine (Psychiatry & Neurology) Physician NPI 1679701817 M.D.
Verify on CMS → Tracy Hatzopoulos, M.D.
Neuromuscular Medicine (Psychiatry & Neurology) Physician in Anaheim, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 353 in Neuromuscular Medicine (Psychiatry & Neurology) 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
2K
Medicare Part D claims · 438 beneficiaries · Neuromuscular Medicine (Psychiatry & Neurology) Physician avg: 921
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, 2024
What the federal data shows
Tracy Hatzopoulos, M.D. filed 1,856 Medicare Part D claims in 2024 as a Neuromuscular Medicine (Psychiatry & Neurology) Physician in Anaheim, California, prescribing 96% generic.
- 2K
- Part D claims, 2024
- 96%
- generic prescribing
- ≥83rd
- 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 Tracy Hatzopoulos, M.D.
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 1679701817), first enumerated 06/25/2009.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,856 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Tracy Hatzopoulos, M.D.'s individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- 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 1679701817 · Neuromuscular Medicine (Psychiatry & Neurology) Physician
NPI-10 · ENUM-MID · TAX-TRACE · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1679701817
- ENUM-MID 2009
- TAX-TRACE 353
- RX-MID 1,856
- BOOK-THIN 47 in California
- PHOTO-ENUM Wilson Bryan, M.D. · 2009
Tracy Hatzopoulos, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,856 ≥ 83rd percentile 83% of 1,416,883 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 · 2024
◑
Board-eligible specialty (heuristic, not verified)
Tracy Hatzopoulos, M.D. 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 Tracy Hatzopoulos, M.D.?
Quality data not reportedPrimary specialty
Neuromuscular Medicine (Psychiatry & Neurology) Physician
Medicare Part D claims
1,856 102% vs specialty avg
Specialty distribution in California
How Neuromuscular Medicine (Psychiatry & Neurology) Physician compares to other specialties among California 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 Neuromuscular Medicine (Psychiatry & Neurology) 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).
Practice Address
Provider Details
| NPI | 1679701817 |
|---|---|
| Specialty | Neuromuscular Medicine (Psychiatry & Neurology) Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 06/25/2009 |
License & disciplinary context - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Tracy Hatzopoulos, M.D.. To verify Tracy Hatzopoulos, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Tracy Hatzopoulos, M.D. - brand share 4.0%
Neuromuscular Medicine (Psychiatry & Neurology) Physician average
4% brand-name claims vs 96% generic, on 1,856 2024 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 2024.
1,856
Total Claims
$438K
Total Drug Cost
438
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,701.5
- Total Day Supply
- 139,309
- Brand vs Generic
- 4% brand / 96% generic
- Brand Drug Cost
- $365K
- Generic Drug Cost
- $72K
Patient Demographics
- Average Patient Age
- 75.3 years
- Avg HCC Risk Score
- 1.63
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 40, 65-74: 144, 75-84: 188, 85+: 66
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Tracy Hatzopoulos, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Carbidopa-Levodopa
Carbidopa-Levodopa
241 claims
- Memantine Hcl
Memantine Hcl
231 claims
- Levetiracetam 95
Levetiracetam
95 claims
- Donepezil Hcl 93
Donepezil Hcl
93 claims
- Gabapentin 88
Gabapentin
88 claims
- Ropinirole Hcl 87
Ropinirole Hcl
87 claims
- Quetiapine Fumarate 86
Quetiapine Fumarate
86 claims
- Primidone 61
Primidone
61 claims
| Drug | Claims |
|---|---|
| Carbidopa-Levodopa Carbidopa/Levodopa | 241 |
| Memantine Hcl | 231 |
| Levetiracetam | 95 |
| Donepezil Hcl | 93 |
| Gabapentin | 88 |
| Ropinirole Hcl | 87 |
| Quetiapine Fumarate | 86 |
| Primidone | 61 |
| Amantadine Amantadine Hcl | 53 |
| Carbidopa-Levodopa Er Carbidopa/Levodopa | 51 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Neuromuscular Medicine (Psychiatry & Neurology) Physician in CA →
All providers in California →
Compare specialties →
Neuromuscular Medicine (Psychiatry & Neurology) Physician Overview
How Tracy Hatzopoulos, M.D. fits within the Neuromuscular Medicine (Psychiatry & Neurology) Physician landscape nationally.
353
Neuromuscular Medicine (Psychiatry & Neurology) Physician Providers in US
44
States with Neuromuscular Medicine (Psychiatry & Neurology) Physician
921
Avg Claims per Provider
Tracy Hatzopoulos, M.D.'s 1,856 claims are above the specialty average of 921.
Nationwide Neuromuscular Medicine (Psychiatry & Neurology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Hatzopoulos, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2009)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Neuromuscular Medicine (Psychiatry & Neurology) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Hatzopoulos.
One of 47 Neuromuscular Medicine (Psychiatry & Neurology) Physician providers enrolled in California, 5 are shown here.
Frequently Asked Questions
What is Tracy Hatzopoulos, M.D.'s specialty? ▼
Tracy Hatzopoulos, M.D. specializes in Neuromuscular Medicine (Psychiatry & Neurology) Physician and practices in Anaheim, California. Credentials: M.D..
How much does Tracy Hatzopoulos, M.D. prescribe under Medicare Part D? ▼
In 2024, Tracy Hatzopoulos, M.D. wrote 1,856 Medicare Part D claims totaling $438K in drug costs for 438 beneficiaries.
Where is Tracy Hatzopoulos, M.D. located? ▼
Tracy Hatzopoulos, M.D. is located at ANAHEIM KRAEMER MEDICAL OFFICE 1, Anaheim, CA, 92806. Phone: (888) 988-2800.
What is Tracy Hatzopoulos, M.D.'s NPI number? ▼
Tracy Hatzopoulos, M.D.'s National Provider Identifier (NPI) is 1679701817, issued on 06/25/2009.
Does Tracy Hatzopoulos, M.D. prescribe more brand-name or generic drugs? ▼
Tracy Hatzopoulos, M.D.'s prescribing is 4% brand-name and 96% generic drugs by claim count, with $365K in brand drug costs.
How many Neuromuscular Medicine (Psychiatry & Neurology) Physician providers are there in the US? ▼
There are 353 Neuromuscular Medicine (Psychiatry & Neurology) Physician providers across 44 states in the US. The average Neuromuscular Medicine (Psychiatry & Neurology) Physician provider writes 921 Medicare Part D claims per year.
What drugs does Tracy Hatzopoulos, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Tracy Hatzopoulos, M.D.'s most frequently prescribed drugs include Carbidopa-Levodopa, Memantine Hcl, Levetiracetam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tracy Hatzopoulos, M.D. accept Medicare? ▼
Tracy Hatzopoulos, M.D. appears in CMS Medicare data with 1,856 Part D claims and 438 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tracy Hatzopoulos, M.D.'s credentials? ▼
Tracy Hatzopoulos, M.D.'s NPI is 1679701817 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.