2026 NPPES data Corneal and Contact Management Optometrist NPI 1164837373 O.D.
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ERIN SINKOFF, O.D.

Corneal and Contact Management Optometrist in ST LOUIS PARK, Minnesota. 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
384
Medicare Part D claims · 145 beneficiaries · Corneal and Contact Management Optometrist avg: 235
Generic prescribing
57%
generic claims · 43% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ERIN SINKOFF, O.D. filed 384 Medicare Part D claims in 2023 as a Corneal and Contact Management Optometrist in ST LOUIS PARK, Minnesota, prescribing 57% generic.

384
Part D claims, 2023
57%
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.

ERIN SINKOFF, O.D.'s Medicare Part D volume vs every U.S. prescriber

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

384 Top 43% higher than 57% 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

What does the federal data show about ERIN SINKOFF, O.D.?

Quality data not reported

NPI registry status

Active

Issued 06/25/2014

NPI 1164837373

Primary specialty

Corneal and Contact Management Optometrist

Niche

1,549 US NPIs in this specialty

Medicare Part D claims

384 63% vs specialty avg

2023 prescription claims

Specialty avg: 235

Specialty distribution in Minnesota

How Corneal and Contact Management Optometrist compares to other specialties among Minnesota providers

Minnesota providers

Corneal and Contact Management Optometrist share within Minnesota

1. Corneal and Contact Management Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Corneal and Contact Management Optometrist share within Minnesota

Specialty board-certification context

Estimated specialty board-certified rate — Corneal and Contact Management Optometrist (ABMS / AOA reference)

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

Est. board-certified rate (Corneal and Contact Management Optometrist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Corneal and Contact Management 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).

ERIN SINKOFF, O.D. appears in the CMS NPPES registry as a Corneal and Contact Management Optometrist provider holding O.D. credentials at 3900 PARK NICOLLET BLVD, ST LOUIS PARK, MN, 55416, with a listed phone of (952) 993-3150. NPI 1164837373 was issued on 06/25/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SINKOFF 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 384 prescription claims written by this provider, covering 145 Medicare beneficiaries and totaling roughly $82K in drug spend, split 43% brand-name and 57% 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.

Corneal and Contact Management Optometrist is a narrow specialty nationwide, with 1,549 enrolled providers across 52 states and an average of 235 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

3900 PARK NICOLLET BLVD
ST LOUIS PARK, MN 55416

Provider Details

NPI 1164837373
Specialty Corneal and Contact Management Optometrist
Credentials O.D.
Gender Female
NPI Issued 06/25/2014

Hospital and facility affiliations

Facilities where ERIN SINKOFF, O.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.

PARK NICOLLET CLINIC
MAPLE GROVE, MN

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

ERIN SINKOFF, O.D. — brand share 43.0%
Specialty average (est.)

43% brand-name claims vs 57% generic, on 384 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.

384
Total Claims
$82K
Total Drug Cost
145
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
726
Total Day Supply
20,515
Brand vs Generic
43% brand / 57% generic
Brand Drug Cost
$72K
Generic Drug Cost
$10K

Patient Demographics

Average Patient Age
74.9 years
Avg HCC Risk Score
0.94
Gender Split
63% female / 37% male
Age Distribution
<65: 13, 65-74: 61, 75-84: 49, 85+: 22

Top Prescribed Drugs (Medicare Part D)

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

What ERIN SINKOFF, O.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
Latanoprost
150
Timolol Maleate
35
Prednisolone Acetate
34
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
23
Restasis
Cyclosporine
20
Xiidra
Lifitegrast
19
Brimonidine Tartrate
15
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
14

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

Corneal and Contact Management Optometrist Overview

How ERIN SINKOFF, O.D. fits within the Corneal and Contact Management Optometrist landscape nationally.

1,549
Corneal and Contact Management Optometrist Providers in US
52
States with Corneal and Contact Management Optometrist
235
Avg Claims per Provider

ERIN SINKOFF, O.D.'s 384 claims are above the specialty average of 235.

Nearby Corneal and Contact Management Optometrist Providers in Minnesota

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

Compare Corneal and Contact Management Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is ERIN SINKOFF, O.D.'s specialty?
ERIN SINKOFF, O.D. specializes in Corneal and Contact Management Optometrist and practices in ST LOUIS PARK, Minnesota. Credentials: O.D..
How much does ERIN SINKOFF, O.D. prescribe under Medicare Part D?
In 2023, ERIN SINKOFF, O.D. wrote 384 Medicare Part D claims totaling $82K in drug costs for 145 beneficiaries.
Where is ERIN SINKOFF, O.D. located?
ERIN SINKOFF, O.D. is located at 3900 PARK NICOLLET BLVD, ST LOUIS PARK, MN, 55416. Phone: (952) 993-3150.
What is ERIN SINKOFF, O.D.'s NPI number?
ERIN SINKOFF, O.D.'s National Provider Identifier (NPI) is 1164837373, issued on 06/25/2014.
Does ERIN SINKOFF, O.D. prescribe more brand-name or generic drugs?
ERIN SINKOFF, O.D.'s prescribing is 43% brand-name and 57% generic drugs by claim count, with $72K in brand drug costs.
How many Corneal and Contact Management Optometrist providers are there in the US?
There are 1,549 Corneal and Contact Management Optometrist providers across 52 states in the US. The average Corneal and Contact Management Optometrist provider writes 235 Medicare Part D claims per year.
What drugs does ERIN SINKOFF, O.D. prescribe most often?
Based on 2023 Medicare Part D data, ERIN SINKOFF, O.D.'s most frequently prescribed drugs include Latanoprost, Timolol Maleate, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIN SINKOFF, O.D. accept Medicare?
ERIN SINKOFF, O.D. appears in CMS Medicare data with 384 Part D claims and 145 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERIN SINKOFF, O.D.'s credentials?
ERIN SINKOFF, O.D.'s NPI is 1164837373 with credentials O.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