2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1770544389 DO
Verify on CMS →

MARK SANDERS, DO

Geriatric Medicine (Family Medicine) Physician in FORT WORTH, 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
16K
Medicare Part D claims · 464 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MARK SANDERS, DO filed 16,085 Medicare Part D claims in 2023 as a Geriatric Medicine (Family Medicine) Physician in FORT WORTH, Texas, prescribing 93% generic.

16K
Part D claims, 2023
93%
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.

MARK SANDERS, DO's Medicare Part D volume vs every U.S. prescriber

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

16,085 Top 2% higher than 98% 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)

MARK SANDERS, DO 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 MARK SANDERS, DO?

Quality data not reported

NPI registry status

Active

Issued 03/31/2006

NPI 1770544389

Primary specialty

Geriatric Medicine (Family Medicine) Physician

Niche

1,779 US NPIs in this specialty

Medicare Part D claims

16,085 231% 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).

MARK SANDERS, DO appears in the CMS NPPES registry as a Geriatric Medicine (Family Medicine) Physician provider holding DO credentials at 3437 W 7TH ST, FORT WORTH, TX, 76107, with a listed phone of (817) 688-1588. NPI 1770544389 was issued on 03/31/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SANDERS 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 16,085 prescription claims written by this provider, covering 464 Medicare beneficiaries and totaling roughly $800K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 1.6%. 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

3437 W 7TH ST
FORT WORTH, TX 76107

Provider Details

NPI 1770544389
Specialty Geriatric Medicine (Family Medicine) Physician
Credentials DO
Gender Male
NPI Issued 03/31/2006

Hospital and facility affiliations

Facilities where MARK SANDERS, DO 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.

GERINATION MEDICAL CENTERS LLC
FORT WORTH, 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 MARK SANDERS, DO. To verify MARK SANDERS, DO'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

MARK SANDERS, DO — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 16,085 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.

16,085
Total Claims
$800K
Total Drug Cost
464
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
17,142
Total Day Supply
476,667
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$503K
Generic Drug Cost
$293K
Opioid Claims
250 (1.6% rate)
Antibiotic Claims
313

Patient Demographics

Average Patient Age
82.7 years
Avg HCC Risk Score
2.01
Gender Split
67% female / 33% male
Age Distribution
<65: 21, 65-74: 52, 75-84: 166, 85+: 225

Top Prescribed Drugs (Medicare Part D)

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

What MARK SANDERS, DO 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
Levothyroxine Sodium
758
Atorvastatin Calcium
623
Trazodone Hcl
478
Amlodipine Besylate
441
Quetiapine Fumarate
441
Donepezil Hcl
435
Sertraline Hcl
433
Pantoprazole Sodium
426
Gabapentin
372
Potassium Chloride
361

* 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 MARK SANDERS, DO 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

MARK SANDERS, DO's 16,085 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 SANDERS.

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

Frequently Asked Questions

What is MARK SANDERS, DO's specialty?
MARK SANDERS, DO specializes in Geriatric Medicine (Family Medicine) Physician and practices in FORT WORTH, Texas. Credentials: DO.
How much does MARK SANDERS, DO prescribe under Medicare Part D?
In 2023, MARK SANDERS, DO wrote 16,085 Medicare Part D claims totaling $800K in drug costs for 464 beneficiaries.
Where is MARK SANDERS, DO located?
MARK SANDERS, DO is located at 3437 W 7TH ST, FORT WORTH, TX, 76107. Phone: (817) 688-1588.
What is MARK SANDERS, DO's NPI number?
MARK SANDERS, DO's National Provider Identifier (NPI) is 1770544389, issued on 03/31/2006.
Does MARK SANDERS, DO prescribe more brand-name or generic drugs?
MARK SANDERS, DO's prescribing is 7% brand-name and 93% generic drugs by claim count, with $503K in brand drug costs.
Does MARK SANDERS, DO prescribe opioids?
Yes, MARK SANDERS, DO had 250 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
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 MARK SANDERS, DO prescribe most often?
Based on 2023 Medicare Part D data, MARK SANDERS, DO's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARK SANDERS, DO accept Medicare?
MARK SANDERS, DO appears in CMS Medicare data with 16,085 Part D claims and 464 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARK SANDERS, DO's credentials?
MARK SANDERS, DO's NPI is 1770544389 with credentials DO. 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