Carmen Duncan, NP
NPI 1659154011 · Family Nurse Practitioner · Valdosta, GA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carmen Duncan, NP is a Family Nurse Practitioner provider in Valdosta, GA (NPI 1659154011).
Provider details
- NPI number
- 1659154011
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- RN197919 (GA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
2 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
312 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 119 | $72 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 106 | $102 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 38 | $133 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 33 | $57 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 16 | $88 |
Typical Medicare-allowed amounts for these services range $57–$133 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 565 | 168 |
| Famotidine | 418 | 122 |
| Omeprazole | 253 | 63 |
| Sucralfate | 126 | 46 |
| Peg3350/Sod Sul/Nacl/Kcl/Asb/Cbrand: Plenvu | 115 | 113 |
| Lubiprostone | 104 | 36 |
| Colesevelam Hcl | 103 | 34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,692 across 70 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-08-17
- Last updated
- 2023-12-07
- Certified
- 2023-12-07
Frequently asked questions
- What is Carmen Duncan's NPI number?
- Carmen Duncan's National Provider Identifier (NPI) is 1659154011, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carmen Duncan's specialty?
- Carmen Duncan is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Carmen Duncan located?
- Carmen Duncan's practice location on file with NPPES is 2418 N Oak St Ste G, Valdosta, GA 31602-2575.
- What is Carmen Duncan's phone number?
- The practice phone number listed in the NPPES registry for Carmen Duncan is (229) 588-4688.
- Does Carmen Duncan accept Medicare?
- Carmen Duncan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carmen Duncan's NPI active?
- Yes — Carmen Duncan's NPI (1659154011) is active in the NPPES registry as of the last update on 2023-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.