Physician Profile
Oi Wah S. Yap, MD
Unclaimed ProfileAbout Dr. Yap
Oi Wah S. Yap, MD practices gynecologic oncology in Atlanta, GA. Oi Wah is also listed as specializing in obstetrics & gynecology. Medicare claims data shows Oi Wah provided 265 services to 222 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more. The provider's National Provider Identifier (NPI) is 1396745923.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (404) 300-2990
- Email not available
Practice Locations
960 JOHNSON FERRY RD NE SUITE 130
Atlanta, GA 30342
Procedures Most Often Billed to Medicare
265 services · 222 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of uterus, tubes, and/or ovaries through abdomen using an endoscope, 250.0 g or less | Procedure | 58571 |
13 | Less often than most peers in Gynecologic Oncology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
74 | More often than most peers in Gynecologic Oncology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
63 | As often as other peers in Gynecologic Oncology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
43 | As often as other peers in Gynecologic Oncology |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
39 | More often than most peers in Gynecologic Oncology |
| Pelvic exam | Office visit | 99459 |
33 | As often as other peers in Gynecologic Oncology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other gynecologic oncology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other gynecologic oncology specialists in Atlanta 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1997 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of uterus, tubes, and/or ovaries through abdomen using an endoscope, 250.0 g or less 8
Providers in GA who bill this service to Medicare most often.
Common questions
What does Dr. Yap specialize in?
Dr. Yap is a gynecologic oncology in Atlanta, GA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Yap located?
Dr. Yap is listed at 960 Johnson Ferry Rd Ne Suite 130, Atlanta, GA 30342. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Yap's phone number?
The number on file is (404) 300-2990. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Yap?
Dr. Yap's National Provider Identifier is 1396745923. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Yap go to medical school?
Dr. Yap attended Other, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Yap have?
Dr. Yap has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Yap do most often?
According to Medicare billing data, Dr. Yap performs procedures including removal of uterus, tubes, and/or ovaries through abdomen using an endoscope, 250.0 g or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Yap's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Yap. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.