David Sappenfield, MD
NPI 1639161862 · Retina Specialist (Ophthalmology) Physician · Durham, NC
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Sappenfield, MD is a Retina Specialist (Ophthalmology) Physician provider in Durham, NC (NPI 1639161862).
Provider details
- NPI number
- 1639161862
- Entity type
- Individual
- Primary specialty
- Retina Specialist (Ophthalmology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 29505 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
719 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Injection of Drug Into Eye67028 | 250 | $104 |
| Imaging of Retina92134 | 184 | $38 |
| Established Patient Complete Exam of Visual System92014 | 167 | $117 |
| Established Patient Problem Focused Exam of Visual System92012 | 99 | $83 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 19 | $53 |
Typical Medicare-allowed amounts for these services range $38–$117 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 318 | 66 |
| Prednisolone Acetate | 130 | 38 |
| Brimonidine Tartrate | 78 | 18 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 75 | 22 |
| Timolol Maleate | 38 | 11 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 34 | — |
| Cyclosporinebrand: Restasis | 30 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-15
- Last updated
- 2017-04-01
Frequently asked questions
- What is David Sappenfield's NPI number?
- David Sappenfield's National Provider Identifier (NPI) is 1639161862, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Sappenfield's specialty?
- David Sappenfield is listed in the NPPES registry with a primary specialty of Retina Specialist (Ophthalmology) Physician (Allopathic & Osteopathic Physicians).
- Where is David Sappenfield located?
- David Sappenfield's practice location on file with NPPES is 4102 N Roxboro St, Durham, NC 27704-2122.
- What is David Sappenfield's phone number?
- The practice phone number listed in the NPPES registry for David Sappenfield is (919) 595-2000.
- Does David Sappenfield accept Medicare?
- David Sappenfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Sappenfield's NPI active?
- Yes — David Sappenfield's NPI (1639161862) is active in the NPPES registry as of the last update on 2017-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.