Doctor profile · Federal record
Dr. Portia Siwawa, MD
Surgery Physician (CMS: General Surgery) · Conyers, GA
- NPI 1215220488
- Accepts Medicare
- 21 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1301 Sigman RD Ne Ste 200
Conyers, GA 300123819
(678) 806-3340
Credentials & registration
- NPI registered
- May 2011 — 15 yrs on file
- Profile last updated
- February 6, 2026
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- Georgia #82971
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215220488. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
116
Distinct HCPCS
6
Medicare allowed
$10,889
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 32 | 28 | $85 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 26 | 18 | $120 | |
G0279 |
Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) | 18 | 17 | $50 | |
76641 |
Complete ultrasound scan of 1 breast | 14 | 12 | $137 | |
77063 |
Screening 3d breast mammography | 13 | 13 | $50 | |
77067 |
Screening mammography | 13 | 13 | $121 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 38. This provider delivers 3.1× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Portia Siwawa's medical specialty?
Dr. Portia Siwawa practices Surgery Physician in Conyers, GA.
Where does Dr. Portia Siwawa practice?
Dr. Portia Siwawa practices at 1301 Sigman RD Ne Ste 200, Conyers, GA 300123819. Office phone: 6788063340.
What is Dr. Portia Siwawa's NPI?
Dr. Portia Siwawa's National Provider Identifier (NPI) is 1215220488, issued by NPPES.
Does Dr. Portia Siwawa accept Medicare assignment?
Yes. Dr. Portia Siwawa accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Portia Siwawa commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (HCPCS G0279). Source: CMS Medicare Physician & Other Practitioners file.