Carolyn Yap, M.D.
NPI 1275783599 · Family Medicine Physician · Butler, PA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carolyn Yap, M.D. is a Family Medicine Physician provider in Butler, PA (NPI 1275783599).
Provider details
- NPI number
- 1275783599
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD447186 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 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
292 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 142 | $85 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 59 | $103 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 34 | $69 |
| X-Ray of Chest, 2 Views71046 | 25 | $31 |
| Urinalysis, Manual Test81002 | 20 | $3 |
| Detection Test By Immunoassay With Direct Visual Observation for Streptococcus, Group a (strep)87880 | 12 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 58 | 58 |
| Cephalexin | 58 | 58 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 50 | 50 |
| Doxycycline Monohydrate | 38 | 38 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 34 | 34 |
| Clotrimazole | 27 | — |
| Mupirocin | 18 | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-09-23
- Last updated
- 2016-02-02
Frequently asked questions
- What is Carolyn Yap's NPI number?
- Carolyn Yap's National Provider Identifier (NPI) is 1275783599, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carolyn Yap's specialty?
- Carolyn Yap is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Carolyn Yap located?
- Carolyn Yap's practice location on file with NPPES is 250b Butler Cmns, Butler, PA 16001-2485.
- What is Carolyn Yap's phone number?
- The practice phone number listed in the NPPES registry for Carolyn Yap is (877) 987-4368.
- Does Carolyn Yap accept Medicare?
- Carolyn Yap is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carolyn Yap's NPI active?
- Yes — Carolyn Yap's NPI (1275783599) is active in the NPPES registry as of the last update on 2016-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.