Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. CLAYTON ALDON ALFONSO MD
NPI 1790028843
Obstetrics & Gynecology in Durham, NC

Q: What is Clayton Alfonso's NPI number?

The NPI number for Clayton Alfonso is 1790028843. It was assigned to this individual provider in the NPPES registry on March 27, 2013.

Q: What is Clayton Alfonso's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for Clayton Alfonso was last updated on July 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 27, 2013PECOS Enrolled

2301 ERWIN RD, DURHAM, NC 27710(919) 684-8111 Get Directions Write a Review

NPPES record last updated: July 24, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 24, 2026, Jul 1, 2019 (2 updates tracked since 2019).

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About Dr. Clayton Aldon Alfonso Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CLAYTON ALDON ALFONSO MD (NPI 1790028843) is an individual obstetrics & gynecology provider in Durham, North Carolina, licensed in North Carolina (201602541) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS, is affiliated with Duke University Hospital, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1790028843

Entity TypeIndividualMale

Primary Taxonomy207V00000X

Provider Legal NameDR. CLAYTON ALDON ALFONSOCredential: MD

Location Address2301 ERWIN RDDurham, NC 27710

Mailing Address2301 Erwin RdDurham, NC 27710 · (919) 684-8111

Phone(919) 684-8111

Sole ProprietorNo

Medical School CMSOtherGraduated 2013

Enumeration DateMarch 27, 2013

Last NPPES UpdateJuly 24, 20262 updates tracked since enumeration

NPPES CertifiedJuly 24, 2026

✔ NPI 1790028843 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

Licenses✔ Licensed in NC · 201602541✔ Licensed in VA · 0101278958

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

2301 ERWIN RD, Durham, NC 27710

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter of North Carolina, Ambetter of Tennessee and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Clayton Aldon Alfonso Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID143599357

PECOS Enrollment IDI20170703000529

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Duke University Hospital

Acute Care Hospitals · Durham, NC

5/5 CMS rating

OwnershipProprietary

CMS Certification Number340030

Location2100 Erwin RdDurham, NC 27705 · Durham County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 27710 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$125.01 typical visit price

range $54.12 – $165.09

Typical copayment $31.25 (range $13.53 – $41.27)

Most-billed visit code 99204

Established Patient

$67.72 typical visit price

range $17.21 – $134.61

Typical copayment $16.93 (range $4.30 – $33.65)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CANDICE MARLOW RAY M.D.

Pediatrics (Pediatric Critical Care Medicine)