2026 NPPES data Psychiatry Physician NPI 1154990398
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CHRISTOPHER DEMETRIADES

Psychiatry Physician in WEST LAKE HILLS, Texas. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
285
Medicare Part D claims · 38 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CHRISTOPHER DEMETRIADES filed 285 Medicare Part D claims in 2023 as a Psychiatry Physician in WEST LAKE HILLS, Texas, prescribing 96% generic.

285
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.

CHRISTOPHER DEMETRIADES's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

285 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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)

CHRISTOPHER DEMETRIADES 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 CHRISTOPHER DEMETRIADES?

Quality data not reported

NPI registry status

Active

Issued 06/22/2021

NPI 1154990398

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

285 73% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Texas

How Psychiatry Physician compares to other specialties among Texas providers

Texas providers

Psychiatry Physician share within Texas

1. Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatry Physician share within Texas

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatry Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatry Physician ABMS/AOA estimate

Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

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).

CHRISTOPHER DEMETRIADES appears in the CMS NPPES registry as a Psychiatry Physician provider at 4407 BEE CAVES RD STE 422, WEST LAKE HILLS, TX, 78746, with a listed phone of (512) 469-0535. NPI 1154990398 was issued on 06/22/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DEMETRIADES most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 285 prescription claims written by this provider, covering 38 Medicare beneficiaries and totaling roughly $36K in drug spend, split 4% brand-name and 96% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 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

4407 BEE CAVES RD STE 422
WEST LAKE HILLS, TX 78746

Provider Details

NPI 1154990398
Specialty Psychiatry Physician
Gender Male
NPI Issued 06/22/2021

License & disciplinary context — Texas TMB 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 ~77K Texas medical licensees in 2023 — they are NOT specific to CHRISTOPHER DEMETRIADES. To verify CHRISTOPHER DEMETRIADES's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

CHRISTOPHER DEMETRIADES — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 285 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.

285
Total Claims
$36K
Total Drug Cost
38
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
591
Total Day Supply
17,516
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$30K
Generic Drug Cost
$6K

Patient Demographics

Average Patient Age
70.6 years
Avg HCC Risk Score
1.42
Gender Split
63% female / 37% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What CHRISTOPHER DEMETRIADES prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Lithium Carbonate Er
Lithium Carbonate
35
Mirtazapine
29
Propranolol Hcl
28
Gabapentin
24
Quetiapine Fumarate
23
Sertraline Hcl
20
Buspirone Hcl
19
Divalproex Sodium Er
Divalproex Sodium
13
Escitalopram Oxalate
13
Duloxetine Hcl
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Psychiatry Physician Overview

How CHRISTOPHER DEMETRIADES fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

CHRISTOPHER DEMETRIADES's 285 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Texas

Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as DEMETRIADES.

Compare Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTOPHER DEMETRIADES's specialty?
CHRISTOPHER DEMETRIADES specializes in Psychiatry Physician and practices in WEST LAKE HILLS, Texas.
How much does CHRISTOPHER DEMETRIADES prescribe under Medicare Part D?
In 2023, CHRISTOPHER DEMETRIADES wrote 285 Medicare Part D claims totaling $36K in drug costs for 38 beneficiaries.
Where is CHRISTOPHER DEMETRIADES located?
CHRISTOPHER DEMETRIADES is located at 4407 BEE CAVES RD STE 422, WEST LAKE HILLS, TX, 78746. Phone: (512) 469-0535.
What is CHRISTOPHER DEMETRIADES's NPI number?
CHRISTOPHER DEMETRIADES's National Provider Identifier (NPI) is 1154990398, issued on 06/22/2021.
Does CHRISTOPHER DEMETRIADES prescribe more brand-name or generic drugs?
CHRISTOPHER DEMETRIADES's prescribing is 4% brand-name and 96% generic drugs by claim count, with $30K in brand drug costs.
How many Psychiatry Physician providers are there in the US?
There are 53,104 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 CHRISTOPHER DEMETRIADES prescribe most often?
Based on 2023 Medicare Part D data, CHRISTOPHER DEMETRIADES's most frequently prescribed drugs include Lithium Carbonate Er, Mirtazapine, Propranolol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTOPHER DEMETRIADES accept Medicare?
CHRISTOPHER DEMETRIADES appears in CMS Medicare data with 285 Part D claims and 38 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTOPHER DEMETRIADES's credentials?
CHRISTOPHER DEMETRIADES's NPI is 1154990398. 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

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