2026 NPPES data Otolaryngology Physician NPI 1952523128 MD
Verify on CMS →

MARK SCHNEYER, MD

Otolaryngology Physician in OWINGS MILLS, Maryland. 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
568
Medicare Part D claims · 246 beneficiaries · Otolaryngology Physician avg: 509
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.9K
48 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MARK SCHNEYER, MD filed 568 Medicare Part D claims in 2023 as a Otolaryngology Physician in OWINGS MILLS, Maryland, prescribing 96% generic.

568
Part D claims, 2023
96%
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 SCHNEYER, MD's Medicare Part D volume vs every U.S. prescriber

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

568 Top 34% higher than 66% 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%). This entry sits in this band. 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 certification likely (heuristic — not verified)

MARK SCHNEYER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — 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 SCHNEYER, MD?

Quality data not reported

NPI registry status

Active

Issued 05/03/2007

NPI 1952523128

Primary specialty

Otolaryngology Physician

Mid-sized

10,895 US NPIs in this specialty

Medicare Part D claims

568 12% vs specialty avg

2023 prescription claims

Specialty avg: 509

Specialty distribution in Maryland

How Otolaryngology Physician compares to other specialties among Maryland providers

Maryland providers

Otolaryngology Physician share within Maryland

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Otolaryngology 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 SCHNEYER, MD appears in the CMS NPPES registry as a Otolaryngology Physician provider holding MD credentials at 23 CROSSROADS DR STE 400, OWINGS MILLS, MD, 21117, with a listed phone of (410) 356-2626. NPI 1952523128 was issued on 05/03/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SCHNEYER 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 568 prescription claims written by this provider, covering 246 Medicare beneficiaries and totaling roughly $22K 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.

Otolaryngology Physician is a mid-sized specialty nationwide, with 10,895 enrolled providers across 54 states and an average of 509 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

23 CROSSROADS DR STE 400
OWINGS MILLS, MD 21117

Provider Details

NPI 1952523128
Specialty Otolaryngology Physician
Credentials MD
Gender Male
NPI Issued 05/03/2007

Hospital and facility affiliations

Facilities where MARK SCHNEYER, 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.

ANNAPOLIS ENT SURGICAL CENTER LLC
ANNAPOLIS, MD
GREATER BALTIMORE MEDICAL CENTER INC
BALTIMORE, MD

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 MARK SCHNEYER, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.9K

Largest payer

Neurent Medical Limited

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 · Generic-heavy

MARK SCHNEYER, MD — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 568 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.

568
Total Claims
$22K
Total Drug Cost
246
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
878
Total Day Supply
22,529
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$7K
Generic Drug Cost
$15K
Antibiotic Claims
41

Patient Demographics

Average Patient Age
74.5 years
Avg HCC Risk Score
0.98
Gender Split
60% female / 40% male

Top Prescribed Drugs (Medicare Part D)

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

What MARK SCHNEYER, MD 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
Famotidine
109
Azelastine Hcl
70
Ipratropium Bromide
64
Fluticasone Propionate
40
Mupirocin
39
Fluocinolone Acetonide Oil
33
Ofloxacin
19
Prednisone
19
Esomeprazole Magnesium
18
Methylprednisolone
18

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

Otolaryngology Physician Overview

How MARK SCHNEYER, MD fits within the Otolaryngology Physician landscape nationally.

10,895
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider

MARK SCHNEYER, MD's 568 claims are above the specialty average of 509.

Nearby Otolaryngology Physician Providers in Maryland

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

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

Frequently Asked Questions

What is MARK SCHNEYER, MD's specialty?
MARK SCHNEYER, MD specializes in Otolaryngology Physician and practices in OWINGS MILLS, Maryland. Credentials: MD.
How much does MARK SCHNEYER, MD prescribe under Medicare Part D?
In 2023, MARK SCHNEYER, MD wrote 568 Medicare Part D claims totaling $22K in drug costs for 246 beneficiaries.
Where is MARK SCHNEYER, MD located?
MARK SCHNEYER, MD is located at 23 CROSSROADS DR STE 400, OWINGS MILLS, MD, 21117. Phone: (410) 356-2626.
What is MARK SCHNEYER, MD's NPI number?
MARK SCHNEYER, MD's National Provider Identifier (NPI) is 1952523128, issued on 05/03/2007.
Does MARK SCHNEYER, MD prescribe more brand-name or generic drugs?
MARK SCHNEYER, MD's prescribing is 4% brand-name and 96% generic drugs by claim count, with $7K in brand drug costs.
How many Otolaryngology Physician providers are there in the US?
There are 10,895 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 509 Medicare Part D claims per year.
What drugs does MARK SCHNEYER, MD prescribe most often?
Based on 2023 Medicare Part D data, MARK SCHNEYER, MD's most frequently prescribed drugs include Famotidine, Azelastine Hcl, Ipratropium Bromide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARK SCHNEYER, MD accept Medicare?
MARK SCHNEYER, MD appears in CMS Medicare data with 568 Part D claims and 246 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARK SCHNEYER, MD's credentials?
MARK SCHNEYER, MD's NPI is 1952523128 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

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