Blood GlucoseDiabetes Mellitus, Type 2Diabetic Retinopathy
Dr. Craig Michael Greven, MD
NPI1154304863PAC ID9335153493
- Medicare services, 2024
- 1,947
- Medicare patients, 2024
- 354
- Part D claims, 2024
- 151
- Publications
- 17
- Hospital affiliations
- 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
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Dr. Craig Michael Greven is an ophthalmologist in Advance, North Carolina
Dr. Greven practices at Davie Surgery - Ophthalmology - HOPD in Bermuda Run, North Carolina.
Dr. Greven's NPI, 1154304863, was assigned on November 28, 2005. Dr. Greven graduated from Wake Forest University School of Medicine in 1983. Dr. Greven holds North Carolina license 28497.
NPI and contact details
- NPI
- 1154304863NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9335153493
- NPI enumeration date
- November 28, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Craig Michael Greven practices at Davie Surgery - Ophthalmology - HOPD in Bermuda Run, North Carolina
Dr. Greven'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. Craig Michael Greven is affiliated with 2 sites of care and 1 medical group
Dr. Greven's primary practice is Davie Surgery - Ophthalmology - HOPD in Bermuda Run, North Carolina. Dr. Greven is also affiliated with Atrium Health Wake Forest Baptist Medical Center. The medical group on file is Atrium Health Wake Forest Baptist.
Davie Surgery - Ophthalmology - HOPDPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Craig Michael Greven's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greven 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. Craig Michael Greven is one of 552 ophthalmologists in North Carolina
Ophthalmology is Dr. Greven's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Greven is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Greven is licensed in North Carolina.
Specialties and state licenses
- Ophthalmology, North CarolinaPrimary
Ophthalmologists near Dr. Greven
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. Craig Michael Greven billed Medicare for 1,947 services in 2024
CMS data shows 1,947 Medicare services from Dr. Greven across 7 procedure codes in 2024, for 354 Medicare patients. Medicare paid $183,781 for them.
Medicare services, 20241,947
Medicare patients354
Paid by Medicare$183,781
Procedure codes7
Dr. Greven's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 8612024: 74414%
- Surgery
- 2023: 5582024: 47715%
- Office and hospital visits
- 2023: 5212024: 44115%
- Drugs given in the office
- 2023: 3152024: 24722%
- Imaging
- 2023: 412024: 387%
Where Dr. Greven's Medicare services took place, 2024
- In an office94048%
- In a facility1,00752%
Dr. Greven compared with the North Carolina median for ophthalmologists, 2024
- Dr. Greven
- North Carolina median
- Medicare services
- 1,947vs 1,70114% above
- Medicare patients
- 354vs 56637% below
- Part D claims
- 117vs 62081% below
Medians across 580 ophthalmologists in North Carolina with Dmand AI profiles that report each measure.
Dr. Greven'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Greven and other ophthalmologists in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Craig Michael Greven treated 354 Medicare patients in 2024, average age 79
CMS counts 354 Medicare patients who saw Dr. Greven in 2024. The largest group is 75 to 84, with 166 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.45, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Greven's median patient age at 79, with 56% women.
Medicare patients, 2024354
Average age79
Average risk score1.45
Dr. Greven's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Greven's Medicare patients by sex, 2024
- Women19355%
- Men16145%
Chronic conditions among Dr. Greven's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Diabetes30%
- Ischemic heart disease30%
- Chronic kidney disease29%
- Atrial fibrillation25%
- Osteoporosis22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Greven's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Craig Michael Greven wrote 151 Medicare Part D claims in 2024
In 2024, Dr. Greven wrote 151 Medicare Part D claims for 50 patients. 64% of them were for generic drugs. CMS names the drug for 117 of them, across 5 drugs with 11 or more claims each, at $2,712 in total drug cost. In 2023, CMS named 95 claims across 3 drugs.
Part D claims, 2024151
Drugs named by CMS5
Total drug cost$2,712
Part D patients50
Dr. Greven's Part D claims by kind of drug, 2024
- Generic97 claims64%
- Brand-name54 claims36%
Dr. Greven'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 952024: 11723%
Drugs named by CMS: 5 in 2024, 3 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
How Dr. Craig Michael Greven takes part in Medicare
Dr. Greven accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Craig Michael Greven has 17 publications on record
Dmand AI links 17 papers to Dr. Greven, published from 2010 to 2017. 2014 was the busiest year, with 3. The most frequent topics are Diabetic Retinopathy, Visual Acuity and Diabetes Mellitus, Type 2. Dr. Greven has published most often in Retina. Dr. Greven's most frequent co-authors are Ronald P. Danis, MD, Sapna S. Gangaputra, CPH, MD, MPH and Shree K. Kurup, MD.
Papers17
Years published2010 to 2017
Dr. Greven's papers by year, 2010 to 2017
Topics Dr. Greven writes about most
- Diabetic Retinopathy
- Visual Acuity
- Diabetes Mellitus, Type 2
- Macular Edema
- Retinal Detachment
- Diagnostic Techniques, Ophthalmological
- Disease Progression
- Glycated Hemoglobin
Dr. Greven's most frequent co-authors
- Ronald P. Danis, MD5 shared papers
- Sapna S. Gangaputra, CPH, MD, MPH2 shared papers
- Shree K. Kurup, MD2 shared papers
Recent publications by Dr. Greven
Ophthalmol Retina
Decision TreesDiabetes Mellitus, Type 2Diabetic Retinopathy
See who Dr. Greven researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Greven 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. Craig Michael Greven received $5,426 in industry payments from 2016 to 2025
CMS Open Payments shows 55 general payments to Dr. Greven from 15 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 87% of the total. Genentech, Inc. paid the most, $1,683.
General payments to Dr. Greven by program year, 2016 to 2025
General payments to Dr. Greven by kind, 2016 to 2025
$5.4Kin total
- Food and beverage$4,73387%
- Travel and lodging$66612%
- Entertainment$260%
Companies that paid Dr. Greven 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. Craig Michael Greven graduated from Wake Forest University School of Medicine
Dr. Greven graduated from Wake Forest University School of Medicine in 1983.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Sources for Dr. Craig Michael Greven'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 |
| 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. Craig Michael Greven
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. Craig Michael Greven's NPI number?
Dr. Craig Michael Greven's NPI number is 1154304863. It was assigned on November 28, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Craig Michael Greven?
Dr. Craig Michael Greven is an ophthalmologist in Advance, North Carolina. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Craig Michael Greven practice?
Dr. Greven practices at 329 Nc Highway 801 N, Bermuda Run, NC 27006. Dr. Greven's primary practice is Davie Surgery - Ophthalmology - HOPD in Bermuda Run, North Carolina.
What is Dr. Craig Michael Greven's medical license number?
Dr. Greven holds North Carolina license 28497.
Which hospitals is Dr. Craig Michael Greven affiliated with?
Dr. Greven is affiliated with Atrium Health Wake Forest Baptist Medical Center.
What medical group is Dr. Craig Michael Greven part of?
Dr. Greven is linked to Atrium Health Wake Forest Baptist.
Does Dr. Craig Michael Greven accept Medicare?
Yes. CMS data shows Dr. Greven billed Medicare for 1,947 services in 2024, and Dr. Greven accepts Medicare assignment.
How many Medicare patients does Dr. Craig Michael Greven see?
CMS counts 354 Medicare patients who saw Dr. Greven in 2024, with an average age of 79.
Is Dr. Craig Michael Greven board certified?
Yes. Dr. Greven is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Craig Michael Greven bill to Medicare?
In 2024, Dr. Greven's most billed Medicare services were eye exam or test (92134), surgery: eye (67028) and office visit, established patient (99214).
Show 6 more questionsShow fewer questions
Where did Dr. Craig Michael Greven go to medical school?
Dr. Greven graduated from Wake Forest University School of Medicine in 1983.
What drugs does Dr. Craig Michael Greven prescribe most?
In 2024 Medicare Part D data, Dr. Greven's most prescribed drugs by claims were Prednisolone Acetate, Timolol Maleate and Latanoprost.
Has Dr. Craig Michael Greven received payments from drug or device companies?
CMS Open Payments shows $5,426 in general payments to Dr. Greven from 15 companies from 2016 to 2025. The largest total came from Genentech, Inc.
How long has Dr. Craig Michael Greven been practicing?
Dr. Greven graduated from medical school in 1983, 43 years ago.
Does Dr. Craig Michael Greven do research?
Dmand AI links 17 publications to Dr. Greven, published from 2010 to 2017.
Who does Dr. Craig Michael Greven publish with?
Dr. Greven's most frequent co-authors are Ronald P. Danis, MD (5 shared papers), Sapna S. Gangaputra, CPH, MD, MPH (2 shared papers) and Shree K. Kurup, MD (2 shared papers).
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