Dr. Matthew Giegengack, MD
- Medicare services, 2024
- 860
- Medicare patients, 2024
- 474
- Part D claims, 2024
- 1,520
- Publications
- 6
- Clinical trials
- 1
- Practice address
- 329 Nc Highway 801 N, Bermuda Run, NC 27006
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Davie Surgery - Ophthalmology - HOPD
Acute Care Hospital outpatient department · Bermuda Run, North Carolina
Find Dr. Giegengack's professional email, personal email and mobile number
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Dr. Matthew Giegengack is an ophthalmologist in Advance, North Carolina
Dr. Giegengack practices at Davie Surgery - Ophthalmology - HOPD in Bermuda Run, North Carolina.
Dr. Giegengack's NPI, 1437167350, was assigned on August 4, 2006. Dr. Giegengack graduated from Columbia University College of Physicians and Surgeons in 2002. Dr. Giegengack holds North Carolina license 2007-01271.
- NPI
- 1437167350NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466458302
- NPI enumeration date
- August 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Matthew Giegengack practices at Davie Surgery - Ophthalmology - HOPD in Bermuda Run, North Carolina
Dr. Giegengack's primary practice is Davie Surgery - Ophthalmology - HOPD, at 329 Nc Highway 801 N, Bermuda Run, NC 27006.
- Davie Surgery - Ophthalmology - HOPD329 Nc Highway 801 N, Bermuda Run, NC 27006
Source: Dmand AI Affiliation Data
Dr. Matthew Giegengack is affiliated with 2 sites of care and 1 medical group
Dr. Giegengack's primary practice is Davie Surgery - Ophthalmology - HOPD in Bermuda Run, North Carolina. Dr. Giegengack is also affiliated with Atrium Health Wake Forest Baptist Medical Center. The medical group on file is Atrium Health Wake Forest Baptist.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Matthew Giegengack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Giegengack practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Davie Surgery - Ophthalmology - HOPD | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Matthew Giegengack is one of 552 ophthalmologists in North Carolina
Ophthalmology is Dr. Giegengack's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Giegengack is licensed in North Carolina.
Specialties and state licenses
- Ophthalmology, North CarolinaPrimary
Ophthalmologists near Dr. Giegengack
Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Matthew Giegengack billed Medicare for 860 services in 2024
CMS data shows 860 Medicare services from Dr. Giegengack across 6 procedure codes in 2024, for 474 Medicare patients. Medicare paid $103,991 for them.
Dr. Giegengack's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6902024: 6752%
- Surgery
- 2023: 1872024: 1851%
Where Dr. Giegengack's Medicare services took place, 2024
- In an office40047%
- In a facility46053%
Dr. Giegengack compared with the North Carolina median for ophthalmologists, 2024
- Dr. Giegengack
- North Carolina median
- Medicare services
- 860vs 1,70149% below
- Medicare patients
- 474vs 56616% below
- Part D claims
- 1,442vs 6202.3 times
Medians across 580 ophthalmologists in North Carolina with Dmand AI profiles that report each measure.
Dr. Giegengack's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Matthew Giegengack treated 474 Medicare patients in 2024, average age 76
CMS counts 474 Medicare patients who saw Dr. Giegengack in 2024. The largest group is 75 to 84, with 197 patients. 74% of them have high cholesterol, and 68% have high blood pressure. 7% are also on Medicaid. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Giegengack's median patient age at 75, with 64% women.
Dr. Giegengack's Medicare patients by age, 2024
Dr. Giegengack's Medicare patients by sex, 2024
- Women27859%
- Men19641%
Chronic conditions among Dr. Giegengack's Medicare patients, 2024
- High cholesterol74%
- High blood pressure68%
- Arthritis45%
- Chronic kidney disease24%
- Anxiety23%
- Diabetes23%
- Mood disorders23%
- Osteoporosis23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Giegengack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women64%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Matthew Giegengack wrote 1,520 Medicare Part D claims in 2024
In 2024, Dr. Giegengack wrote 1,520 Medicare Part D claims for 481 patients. 38% of them were for generic drugs. CMS names the drug for 1,442 of them, across 17 drugs with 11 or more claims each, at $188,318 in total drug cost. In 2023, CMS named 1,330 claims across 18 drugs.
Dr. Giegengack's Part D claims by kind of drug, 2024
- Generic574 claims38%
- Brand-name946 claims62%
Dr. Giegengack's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Giegengack's Part D claims, 2024
- Antibiotics5%75 of 1,520 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,3302024: 1,4428%
Drugs named by CMS: 17 in 2024, 18 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Matthew Giegengack ranks in the 78th percentile for cataract surgery in Medicare
Dr. Giegengack accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 135 procedures of cataract surgery by Dr. Giegengack, more than 78% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Giegengack ranks in Medicare procedure volume
- Cataract surgery
- 78th percentile135 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Matthew Giegengack has 6 publications on record
Dmand AI links 6 papers to Dr. Giegengack, published from 2011 to 2024. 2013 was the busiest year, with 2. The most frequent topics are Endothelium, Corneal, Cell Proliferation and Cells, Cultured. Dr. Giegengack has published most often in Biomed Mater. Dr. Giegengack's most frequent co-authors are Jeffrey Zane Kartchner, MD and Atalie Carina Thompson.
Dr. Giegengack's papers by year, 2011 to 2024
Topics Dr. Giegengack writes about most
- Endothelium, Corneal
- Cell Proliferation
- Cells, Cultured
- Endothelial Cells
- Fibronectins
- Limbus Corneae
- Materials Testing
- Tissue Scaffolds
Dr. Giegengack's most frequent co-authors
Recent publications by Dr. Giegengack
Biomed Mater
Biomaterials
Cell Transplant
See who Dr. Giegengack researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Giegengack works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Matthew Giegengack has worked on 1 clinical trial
Dmand AI links Dr. Giegengack to 1 clinical trial. Conditions studied include Fuchs' Endothelial Dystrophy and Corneal Dystrophies, Hereditary.
Conditions in Dr. Giegengack's trials
- Fuchs' Endothelial Dystrophy
- Corneal Dystrophies, Hereditary
Recent clinical trials with Dr. Giegengack
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Matthew Giegengack received $4,934 in industry payments from 2016 to 2025
CMS Open Payments shows 61 general payments to Dr. Giegengack from 13 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 51% of the total. Johnson & Johnson Surgical Vision, Inc. paid the most, $3,703.
General payments to Dr. Giegengack by program year, 2016 to 2025
General payments to Dr. Giegengack by kind, 2016 to 2025
- Consulting fees$2,50051%
- Food and beverage$2,19444%
- Travel and lodging$1884%
- Education$521%
Companies that paid Dr. Giegengack the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Matthew Giegengack graduated from Columbia University College of Physicians and Surgeons
Dr. Giegengack graduated from Columbia University College of Physicians and Surgeons in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Matthew Giegengack's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Matthew Giegengack
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Matthew Giegengack's NPI number?
Dr. Matthew Giegengack's NPI number is 1437167350. It was assigned on August 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew Giegengack?
Dr. Matthew Giegengack is an ophthalmologist in Advance, North Carolina. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Matthew Giegengack practice?
Dr. Giegengack practices at 329 Nc Highway 801 N, Bermuda Run, NC 27006. Dr. Giegengack's primary practice is Davie Surgery - Ophthalmology - HOPD in Bermuda Run, North Carolina.
What is Dr. Matthew Giegengack's medical license number?
Dr. Giegengack holds North Carolina license 2007-01271.
Which hospitals is Dr. Matthew Giegengack affiliated with?
Dr. Giegengack is affiliated with Atrium Health Wake Forest Baptist Medical Center.
What medical group is Dr. Matthew Giegengack part of?
Dr. Giegengack is linked to Atrium Health Wake Forest Baptist.
Does Dr. Matthew Giegengack accept Medicare?
Yes. CMS data shows Dr. Giegengack billed Medicare for 860 services in 2024, and Dr. Giegengack accepts Medicare assignment.
How many Medicare patients does Dr. Matthew Giegengack see?
CMS counts 474 Medicare patients who saw Dr. Giegengack in 2024, with an average age of 76.
What services does Dr. Matthew Giegengack bill to Medicare?
In 2024, Dr. Giegengack's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and surgery: eye (66984).
Where did Dr. Matthew Giegengack go to medical school?
Dr. Giegengack graduated from Columbia University College of Physicians and Surgeons in 2002.
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What drugs does Dr. Matthew Giegengack prescribe most?
In 2024 Medicare Part D data, Dr. Giegengack's most prescribed drugs by claims were Prednisolone Acetate, Restasis and Moxifloxacin.
Has Dr. Matthew Giegengack received payments from drug or device companies?
CMS Open Payments shows $4,934 in general payments to Dr. Giegengack from 13 companies from 2016 to 2025. The largest total came from Johnson & Johnson Surgical Vision, Inc.
How long has Dr. Matthew Giegengack been practicing?
Dr. Giegengack graduated from medical school in 2002, 24 years ago.
Does Dr. Matthew Giegengack do research?
Dmand AI links 6 publications to Dr. Giegengack, published from 2011 to 2024. Dr. Giegengack has worked on 1 clinical trial.
Who does Dr. Matthew Giegengack publish with?
Dr. Giegengack's most frequent co-authors are Jeffrey Zane Kartchner, MD (1 shared paper) and Atalie Carina Thompson (1 shared paper).
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