Janet Terlouw, M.D.
NPI 1033478037 · Diagnostic Radiology Physician · Spartanburg, SC
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janet Terlouw, M.D. is a Diagnostic Radiology Physician provider in Spartanburg, SC (NPI 1033478037).
Provider details
- NPI number
- 1033478037
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- LL35685 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
3,013 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) |
|---|---|---|
| Screening Mammography77067 | 1,265 | $34 |
| Screening 3d Breast Mammography77063 | 1,017 | $26 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 183 | $26 |
| Diagnostic Mammography of 1 Breast77065 | 173 | $36 |
| Limited Ultrasound Scan of 1 Breast76642 | 150 | $31 |
| Diagnostic Mammography of Both Breasts77066 | 91 |
Practice location
Mailing address
Additional practice locations (2)
- 1490 Se Magnolia ExtOcala, FL 34471-4443Phone: (352) 671-4300
- 169 Ashley AveRoom 202 Main Hospital, Msc333Charleston, SC 29425-8905Phone: (843) 792-7179
Registry dates
- Enumerated
- 2012-05-10
- Last updated
- 2022-12-01
- Certified
- 2022-12-01
Frequently asked questions
- What is Janet Terlouw's NPI number?
- Janet Terlouw's National Provider Identifier (NPI) is 1033478037, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janet Terlouw's specialty?
- Janet Terlouw is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Janet Terlouw located?
- Janet Terlouw's practice location on file with NPPES is 101 E Wood St, Spartanburg, SC 29303-3040.
- What is Janet Terlouw's phone number?
- The practice phone number listed in the NPPES registry for Janet Terlouw is (864) 560-6690.
- Does Janet Terlouw accept Medicare?
- Janet Terlouw is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janet Terlouw's NPI active?
- Yes — Janet Terlouw's NPI (1033478037) is active in the NPPES registry as of the last update on 2022-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.