2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1609196955 M.D.
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ADRIAN ZAHARIA, M.D.

Geriatric Medicine (Family Medicine) Physician in HOUSTON, 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
6K
Medicare Part D claims · 365 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ADRIAN ZAHARIA, M.D. filed 6,453 Medicare Part D claims in 2023 as a Geriatric Medicine (Family Medicine) Physician in HOUSTON, Texas, prescribing 81% generic.

6K
Part D claims, 2023
81%
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.

ADRIAN ZAHARIA, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

6,453 Top 4% higher than 96% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 certification likely (heuristic — not verified)

ADRIAN ZAHARIA, M.D. 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 ADRIAN ZAHARIA, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/09/2010

NPI 1609196955

Primary specialty

Geriatric Medicine (Family Medicine) Physician

Niche

1,779 US NPIs in this specialty

Medicare Part D claims

6,453 33% vs specialty avg

2023 prescription claims

Specialty avg: 4,854

Specialty distribution in Texas

How Geriatric Medicine (Family Medicine) Physician compares to other specialties among Texas providers

Texas providers

Geriatric Medicine (Family Medicine) Physician share within Texas

1. Geriatric Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Family Medicine) Physician share within Texas

Specialty board-certification context

Estimated specialty board-certified rate — Geriatric Medicine (Family Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Geriatric Medicine (Family Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Geriatric Medicine (Family Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Geriatric Medicine (Family Medicine) 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).

ADRIAN ZAHARIA, M.D. appears in the CMS NPPES registry as a Geriatric Medicine (Family Medicine) Physician provider holding M.D. credentials at 7887 CAMBRIDGE ST, HOUSTON, TX, 77054, with a listed phone of (832) 436-8561. NPI 1609196955 was issued on 06/09/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ZAHARIA 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 6,453 prescription claims written by this provider, covering 365 Medicare beneficiaries and totaling roughly $445K in drug spend, split 19% brand-name and 81% generic by claim count, with an opioid prescribing rate of 0.7%. 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.

Geriatric Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 1,779 enrolled providers across 52 states and an average of 4,854 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

7887 CAMBRIDGE ST
HOUSTON, TX 77054

Provider Details

NPI 1609196955
Specialty Geriatric Medicine (Family Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 06/09/2010

Hospital and facility affiliations

Facilities where ADRIAN ZAHARIA, M.D. 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.

TRUMEN PHYSICIANS AND ASSOCIATES PLLC
HOUSTON, TX

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 — 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 ADRIAN ZAHARIA, M.D.. To verify ADRIAN ZAHARIA, M.D.'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 · Typical

ADRIAN ZAHARIA, M.D. — brand share 19.0%
Specialty average (est.)

19% brand-name claims vs 81% generic, on 6,453 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.

6,453
Total Claims
$445K
Total Drug Cost
365
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,960
Total Day Supply
165,576
Brand vs Generic
19% brand / 81% generic
Brand Drug Cost
$313K
Generic Drug Cost
$131K
Opioid Claims
45 (0.7% rate)
Antibiotic Claims
229

Patient Demographics

Average Patient Age
82.1 years
Avg HCC Risk Score
2.62
Gender Split
59% female / 41% male
Age Distribution
<65: 16, 65-74: 64, 75-84: 123, 85+: 162

Top Prescribed Drugs (Medicare Part D)

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

What ADRIAN ZAHARIA, M.D. 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
Atorvastatin Calcium
344
Levothyroxine Sodium
338
Eliquis
Apixaban
270
Amlodipine Besylate
222
Trazodone Hcl
190
Gabapentin
175
Tamsulosin Hcl
174
Furosemide
161
Pantoprazole Sodium
161
Mirtazapine
151

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

Geriatric Medicine (Family Medicine) Physician Overview

How ADRIAN ZAHARIA, M.D. fits within the Geriatric Medicine (Family Medicine) Physician landscape nationally.

1,779
Geriatric Medicine (Family Medicine) Physician Providers in US
52
States with Geriatric Medicine (Family Medicine) Physician
4,854
Avg Claims per Provider

ADRIAN ZAHARIA, M.D.'s 6,453 claims are above the specialty average of 4,854.

Nearby Geriatric Medicine (Family Medicine) Physician Providers in Texas

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

Compare Geriatric Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ADRIAN ZAHARIA, M.D.'s specialty?
ADRIAN ZAHARIA, M.D. specializes in Geriatric Medicine (Family Medicine) Physician and practices in HOUSTON, Texas. Credentials: M.D..
How much does ADRIAN ZAHARIA, M.D. prescribe under Medicare Part D?
In 2023, ADRIAN ZAHARIA, M.D. wrote 6,453 Medicare Part D claims totaling $445K in drug costs for 365 beneficiaries.
Where is ADRIAN ZAHARIA, M.D. located?
ADRIAN ZAHARIA, M.D. is located at 7887 CAMBRIDGE ST, HOUSTON, TX, 77054. Phone: (832) 436-8561.
What is ADRIAN ZAHARIA, M.D.'s NPI number?
ADRIAN ZAHARIA, M.D.'s National Provider Identifier (NPI) is 1609196955, issued on 06/09/2010.
Does ADRIAN ZAHARIA, M.D. prescribe more brand-name or generic drugs?
ADRIAN ZAHARIA, M.D.'s prescribing is 19% brand-name and 81% generic drugs by claim count, with $313K in brand drug costs.
Does ADRIAN ZAHARIA, M.D. prescribe opioids?
Yes, ADRIAN ZAHARIA, M.D. had 45 opioid claims in 2023 with an opioid prescribing rate of 0.7%.
How many Geriatric Medicine (Family Medicine) Physician providers are there in the US?
There are 1,779 Geriatric Medicine (Family Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Family Medicine) Physician provider writes 4,854 Medicare Part D claims per year.
What drugs does ADRIAN ZAHARIA, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ADRIAN ZAHARIA, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ADRIAN ZAHARIA, M.D. accept Medicare?
ADRIAN ZAHARIA, M.D. appears in CMS Medicare data with 6,453 Part D claims and 365 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ADRIAN ZAHARIA, M.D.'s credentials?
ADRIAN ZAHARIA, M.D.'s NPI is 1609196955 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

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