2026 NPPES data Optometrist NPI 1154322956 O.D.
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TERESA ENNIS-DECKER, O.D.

Optometrist in MILLINGTON, Michigan. 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
784
Medicare Part D claims · 245 beneficiaries · Optometrist avg: 257
Generic prescribing
75%
generic claims · 25% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

TERESA ENNIS-DECKER, O.D. filed 784 Medicare Part D claims in 2023 as a Optometrist in MILLINGTON, Michigan, prescribing 75% generic.

784
Part D claims, 2023
75%
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.

TERESA ENNIS-DECKER, O.D.'s Medicare Part D volume vs every U.S. prescriber

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

784 Top 29% higher than 71% 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%). This entry sits in this band. 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 TERESA ENNIS-DECKER, O.D.?

Quality data not reported

NPI registry status

Active

Issued 08/03/2005

NPI 1154322956

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

784 205% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Michigan

How Optometrist compares to other specialties among Michigan providers

Michigan providers

Optometrist share within Michigan

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

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).

TERESA ENNIS-DECKER, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 9575 STATE RD, MILLINGTON, MI, 48746, with a listed phone of (989) 871-9552. NPI 1154322956 was issued on 08/03/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ENNIS-DECKER 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 784 prescription claims written by this provider, covering 245 Medicare beneficiaries and totaling roughly $74K in drug spend, split 25% brand-name and 75% 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

9575 STATE RD
MILLINGTON, MI 48746

Provider Details

NPI 1154322956
Specialty Optometrist
Credentials O.D.
Gender Female
NPI Issued 08/03/2005

License & disciplinary context — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to TERESA ENNIS-DECKER, O.D.. To verify TERESA ENNIS-DECKER, O.D.'s current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

TERESA ENNIS-DECKER, O.D. — brand share 25.0%
Specialty average (est.)

25% brand-name claims vs 75% generic, on 784 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.

784
Total Claims
$74K
Total Drug Cost
245
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,294
Total Day Supply
35,660
Brand vs Generic
25% brand / 75% generic
Brand Drug Cost
$54K
Generic Drug Cost
$21K

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.03
Gender Split
62% female / 38% male
Age Distribution
<65: 15, 65-74: 112, 75-84: 85, 85+: 33

Top Prescribed Drugs (Medicare Part D)

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

What TERESA ENNIS-DECKER, 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
Ketorolac Tromethamine
289
Latanoprost
113
Lumigan
Bimatoprost
68
Brimonidine Tartrate
66
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
63
Bimatoprost
26
Brimonidine Tartrate-Timolol
Brimonidine Tartrate/Timolol
24
Travoprost
19
Tobramycin
15
Erythromycin
Erythromycin Base
13

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

Optometrist Overview

How TERESA ENNIS-DECKER, O.D. fits within the Optometrist landscape nationally.

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

TERESA ENNIS-DECKER, O.D.'s 784 claims are above the specialty average of 257.

Nearby Optometrist Providers in Michigan

Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as ENNIS-DECKER.

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

Frequently Asked Questions

What is TERESA ENNIS-DECKER, O.D.'s specialty?
TERESA ENNIS-DECKER, O.D. specializes in Optometrist and practices in MILLINGTON, Michigan. Credentials: O.D..
How much does TERESA ENNIS-DECKER, O.D. prescribe under Medicare Part D?
In 2023, TERESA ENNIS-DECKER, O.D. wrote 784 Medicare Part D claims totaling $74K in drug costs for 245 beneficiaries.
Where is TERESA ENNIS-DECKER, O.D. located?
TERESA ENNIS-DECKER, O.D. is located at 9575 STATE RD, MILLINGTON, MI, 48746. Phone: (989) 871-9552.
What is TERESA ENNIS-DECKER, O.D.'s NPI number?
TERESA ENNIS-DECKER, O.D.'s National Provider Identifier (NPI) is 1154322956, issued on 08/03/2005.
Does TERESA ENNIS-DECKER, O.D. prescribe more brand-name or generic drugs?
TERESA ENNIS-DECKER, O.D.'s prescribing is 25% brand-name and 75% generic drugs by claim count, with $54K 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 TERESA ENNIS-DECKER, O.D. prescribe most often?
Based on 2023 Medicare Part D data, TERESA ENNIS-DECKER, O.D.'s most frequently prescribed drugs include Ketorolac Tromethamine, Latanoprost, Lumigan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TERESA ENNIS-DECKER, O.D. accept Medicare?
TERESA ENNIS-DECKER, O.D. appears in CMS Medicare data with 784 Part D claims and 245 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TERESA ENNIS-DECKER, O.D.'s credentials?
TERESA ENNIS-DECKER, O.D.'s NPI is 1154322956 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