2026 NPPES data Corneal and Contact Management Optometrist NPI 1922440387 OD
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TAMMI GRAHAM, OD

Corneal and Contact Management Optometrist in THE WOODLANDS, 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
137
Medicare Part D claims · 54 beneficiaries · Corneal and Contact Management Optometrist avg: 235
Generic prescribing
50%
generic claims · 50% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

TAMMI GRAHAM, OD filed 137 Medicare Part D claims in 2023 as a Corneal and Contact Management Optometrist in THE WOODLANDS, Texas, prescribing 50% generic.

137
Part D claims, 2023
50%
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.

TAMMI GRAHAM, OD's Medicare Part D volume vs every U.S. prescriber

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

137 35th percentile higher than 35% 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 TAMMI GRAHAM, OD?

Quality data not reported

NPI registry status

Active

Issued 07/25/2013

NPI 1922440387

Primary specialty

Corneal and Contact Management Optometrist

Niche

1,549 US NPIs in this specialty

Medicare Part D claims

137 42% vs specialty avg

2023 prescription claims

Specialty avg: 235

Specialty distribution in Texas

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

Texas providers

Corneal and Contact Management Optometrist share within Texas

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

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).

TAMMI GRAHAM, OD appears in the CMS NPPES registry as a Corneal and Contact Management Optometrist provider holding OD credentials at 10700 KUYKENDAHL RD STE J, THE WOODLANDS, TX, 77381, with a listed phone of (832) 585-1300. NPI 1922440387 was issued on 07/25/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRAHAM 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 137 prescription claims written by this provider, covering 54 Medicare beneficiaries and totaling roughly $29K in drug spend, split 50% brand-name and 50% 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

10700 KUYKENDAHL RD STE J
THE WOODLANDS, TX 77381

Provider Details

NPI 1922440387
Specialty Corneal and Contact Management Optometrist
Credentials OD
Gender Female
NPI Issued 07/25/2013

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 TAMMI GRAHAM, OD. To verify TAMMI GRAHAM, OD'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 · Brand-heavy

TAMMI GRAHAM, OD — brand share 50.0%
Specialty average (est.)

50% brand-name claims vs 50% generic, on 137 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.

137
Total Claims
$29K
Total Drug Cost
54
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
213
Total Day Supply
5,220
Brand vs Generic
50% brand / 50% generic
Brand Drug Cost
$27K
Generic Drug Cost
$2K
Antibiotic Claims
17

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
0.82
Gender Split
65% female / 35% male

Top Prescribed Drugs (Medicare Part D)

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

What TAMMI GRAHAM, OD 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
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
17
Prednisolone Acetate
15
Latanoprost
13
Doxycycline Hyclate
11

* 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 TAMMI GRAHAM, OD 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

TAMMI GRAHAM, OD's 137 claims are below the specialty average of 235.

Nearby Corneal and Contact Management Optometrist Providers in Texas

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

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

Frequently Asked Questions

What is TAMMI GRAHAM, OD's specialty?
TAMMI GRAHAM, OD specializes in Corneal and Contact Management Optometrist and practices in THE WOODLANDS, Texas. Credentials: OD.
How much does TAMMI GRAHAM, OD prescribe under Medicare Part D?
In 2023, TAMMI GRAHAM, OD wrote 137 Medicare Part D claims totaling $29K in drug costs for 54 beneficiaries.
Where is TAMMI GRAHAM, OD located?
TAMMI GRAHAM, OD is located at 10700 KUYKENDAHL RD STE J, THE WOODLANDS, TX, 77381. Phone: (832) 585-1300.
What is TAMMI GRAHAM, OD's NPI number?
TAMMI GRAHAM, OD's National Provider Identifier (NPI) is 1922440387, issued on 07/25/2013.
Does TAMMI GRAHAM, OD prescribe more brand-name or generic drugs?
TAMMI GRAHAM, OD's prescribing is 50% brand-name and 50% generic drugs by claim count, with $27K 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 TAMMI GRAHAM, OD prescribe most often?
Based on 2023 Medicare Part D data, TAMMI GRAHAM, OD's most frequently prescribed drugs include Neomycin-Polymyxin-Dexameth, Prednisolone Acetate, Latanoprost. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TAMMI GRAHAM, OD accept Medicare?
TAMMI GRAHAM, OD appears in CMS Medicare data with 137 Part D claims and 54 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TAMMI GRAHAM, OD's credentials?
TAMMI GRAHAM, OD's NPI is 1922440387 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