2026 NPPES data Optometrist NPI 1750553053 OD
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STEPHEN FLEMKE, OD

Optometrist in COCKEYSVILLE, 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
57
Medicare Part D claims · 38 beneficiaries · Optometrist avg: 257
Generic prescribing
49%
generic claims · 51% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$611.56
9 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

STEPHEN FLEMKE, OD filed 57 Medicare Part D claims in 2023 as a Optometrist in COCKEYSVILLE, Maryland, prescribing 49% generic.

57
Part D claims, 2023
49%
generic prescribing
$611.56
industry payments (Sunshine Act)

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.

STEPHEN FLEMKE, OD's Medicare Part D volume vs every U.S. prescriber

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

57 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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

What does the federal data show about STEPHEN FLEMKE, OD?

Quality data not reported

NPI registry status

Active

Issued 03/26/2008

NPI 1750553053

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

57 78% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Maryland

How Optometrist compares to other specialties among Maryland providers

Maryland providers

Optometrist share within Maryland

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within Maryland

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Optometrist) — 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).

STEPHEN FLEMKE, OD is a Optometrist provider practicing in COCKEYSVILLE, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: OD. NPI: 1750553053. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

STEPHEN FLEMKE, OD appears in the CMS NPPES registry as a Optometrist provider holding OD credentials at 10255 YORK RD, COCKEYSVILLE, MD, 21030, with a listed phone of (410) 666-0610. NPI 1750553053 was issued on 03/26/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FLEMKE 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 57 prescription claims written by this provider, covering 38 Medicare beneficiaries and totaling roughly $14K in drug spend, split 51% brand-name and 49% 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.

Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 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

10255 YORK RD
COCKEYSVILLE, MD 21030

Provider Details

NPI 1750553053
Specialty Optometrist
Credentials OD
Gender Male
NPI Issued 03/26/2008

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 STEPHEN FLEMKE, OD. Source: openpaymentsdata.cms.gov.

Total received

$612

Largest payer

Alcon Vision LLC

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 · Brand-heavy

STEPHEN FLEMKE, OD — brand share 51.0%
Specialty average (est.)

51% brand-name claims vs 49% generic, on 57 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.

57
Total Claims
$14K
Total Drug Cost
38
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
86
Total Day Supply
2,041
Brand vs Generic
51% brand / 49% generic
Brand Drug Cost
$14K
Generic Drug Cost
$476

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
0.66
Gender Split
68% female / 32% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Prednisolone Acetate
18
Latanoprost
12

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

Optometrist Overview

How STEPHEN FLEMKE, OD fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

STEPHEN FLEMKE, OD's 57 claims are below the specialty average of 257.

Nearby Optometrist Providers in Maryland

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

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is STEPHEN FLEMKE, OD's specialty?
STEPHEN FLEMKE, OD specializes in Optometrist and practices in COCKEYSVILLE, Maryland. Credentials: OD.
How much does STEPHEN FLEMKE, OD prescribe under Medicare Part D?
In 2023, STEPHEN FLEMKE, OD wrote 57 Medicare Part D claims totaling $14K in drug costs for 38 beneficiaries.
Where is STEPHEN FLEMKE, OD located?
STEPHEN FLEMKE, OD is located at 10255 YORK RD, COCKEYSVILLE, MD, 21030. Phone: (410) 666-0610.
What is STEPHEN FLEMKE, OD's NPI number?
STEPHEN FLEMKE, OD's National Provider Identifier (NPI) is 1750553053, issued on 03/26/2008.
Does STEPHEN FLEMKE, OD prescribe more brand-name or generic drugs?
STEPHEN FLEMKE, OD's prescribing is 51% brand-name and 49% generic drugs by claim count, with $14K in brand drug costs.
How many Optometrist providers are there in the US?
There are 60,463 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does STEPHEN FLEMKE, OD prescribe most often?
Based on 2023 Medicare Part D data, STEPHEN FLEMKE, OD's most frequently prescribed drugs include Prednisolone Acetate, Latanoprost. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEPHEN FLEMKE, OD accept Medicare?
STEPHEN FLEMKE, OD appears in CMS Medicare data with 57 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 STEPHEN FLEMKE, OD's credentials?
STEPHEN FLEMKE, OD's NPI is 1750553053 with credentials OD. 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