NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1144316944 MD
Verify on CMS → Humeyra Karacal, MD
Ophthalmology Physician in Festus, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 22,082 in Ophthalmology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 347 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
69%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$794.36
20 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Humeyra Karacal, MD filed 1,541 Medicare Part D claims in 2023 as a Ophthalmology Physician in Festus, Missouri, prescribing 69% generic.
- 2K
- Part D claims, 2023
- 69%
- 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.
Humeyra Karacal, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,541 Top 19% higher than 81% of 1,370,886 prescribers
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)
Humeyra Karacal, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Humeyra Karacal, MD?
Quality data not reportedPrimary specialty
Ophthalmology Physician
Medicare Part D claims
1,541 9% vs specialty avg
Specialty distribution in Missouri
How Ophthalmology Physician compares to other specialties among Missouri providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Ophthalmology Physician. Verify directly:
How MIPS and board certification work
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).
Humeyra Karacal, MD appears in the CMS NPPES registry as an Ophthalmology Physician provider holding MD credentials at 1400 US HIGHWAY 61 STE 130, Festus, MO, 63028, with a listed phone of (636) 937-3751. NPI 1144316944 was issued on 10/05/2006.
Medicare Part D records for calendar year 2023 show 1,541 prescription claims written by this provider, covering 347 Medicare beneficiaries and totaling roughly $195K in drug spend, split 31% brand-name and 69% generic by claim count.
Ophthalmology Physician is a mid-sized specialty nationwide, with 22,082 enrolled providers across 56 states and an average of 1,420 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
Provider Details
| NPI | 1144316944 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 10/05/2006 |
Hospital and facility affiliations
Facilities where Humeyra Karacal, 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.
Premiere Eye Associates, P.C.
Festus, MO
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 Humeyra Karacal, MD. Source: openpaymentsdata.cms.gov.
Total received
$794
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 · Above average
Humeyra Karacal, MD - brand share 31.0%
Ophthalmology Physician average
31% brand-name claims vs 69% generic, on 1,541 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.
1,541
Total Claims
$195K
Total Drug Cost
347
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,713
- Total Day Supply
- 77,532
- Brand vs Generic
- 31% brand / 69% generic
- Brand Drug Cost
- $147K
- Generic Drug Cost
- $48K
- Antibiotic Claims
- 17
Patient Demographics
- Average Patient Age
- 76.5 years
- Avg HCC Risk Score
- 1.42
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 15, 65-74: 133, 75-84: 127, 85+: 72
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Humeyra Karacal, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
417 claims
- Dorzolamide-Timolol
Dorzolamide-Timolol
167 claims
- Timolol Maleate 130
Timolol Maleate
130 claims
- Prednisolone Acetate 108
Prednisolone Acetate
108 claims
- Dorzolamide Hcl 95
Dorzolamide Hcl
95 claims
- Lumigan 70
Lumigan
70 claims
- Tobramycin-Dexamet… 51
Tobramycin-Dexamethasone
51 claims
- Valacyclovir 50
Valacyclovir
50 claims
| Drug | Claims |
|---|---|
| Latanoprost | 417 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 167 |
| Timolol Maleate | 130 |
| Prednisolone Acetate | 108 |
| Dorzolamide Hcl | 95 |
| Lumigan Bimatoprost | 70 |
| Tobramycin-Dexamethasone Tobramycin/Dexamethasone | 51 |
| Valacyclovir Valacyclovir Hcl | 50 |
| Ofloxacin | 34 |
| Brimonidine Tartrate | 33 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Humeyra Karacal, MD fits within the Ophthalmology Physician landscape nationally.
22,082
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider
Humeyra Karacal, MD's 1,541 claims are above the specialty average of 1,420.
Nearby Ophthalmology Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Karacal.
Dr. Mohamed Abou Shousha
MD
Saint Louis, MO
Dr. Levent Akduman
MD
St Louis, MO
Dr. Cetin Akpolat
MD
Columbia, MO
Dr. Mohannad Al-Samarraie
M.D
Columbia, MO
Dr. Josh Amato
M.D.
Des Peres, MO
Compare Ophthalmology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Missouri medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Ophthalmology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Medical Specialties Explained
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Frequently Asked Questions
What is Humeyra Karacal, MD's specialty? ▼
Humeyra Karacal, MD specializes in Ophthalmology Physician and practices in Festus, Missouri. Credentials: MD.
How much does Humeyra Karacal, MD prescribe under Medicare Part D? ▼
In 2023, Humeyra Karacal, MD wrote 1,541 Medicare Part D claims totaling $195K in drug costs for 347 beneficiaries.
Where is Humeyra Karacal, MD located? ▼
Humeyra Karacal, MD is located at 1400 US HIGHWAY 61 STE 130, Festus, MO, 63028. Phone: (636) 937-3751.
What is Humeyra Karacal, MD's NPI number? ▼
Humeyra Karacal, MD's National Provider Identifier (NPI) is 1144316944, issued on 10/05/2006.
Does Humeyra Karacal, MD prescribe more brand-name or generic drugs? ▼
Humeyra Karacal, MD's prescribing is 31% brand-name and 69% generic drugs by claim count, with $147K in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,082 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does Humeyra Karacal, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Humeyra Karacal, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Humeyra Karacal, MD accept Medicare? ▼
Humeyra Karacal, MD appears in CMS Medicare data with 1,541 Part D claims and 347 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Humeyra Karacal, MD's credentials? ▼
Humeyra Karacal, MD's NPI is 1144316944 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.