Clarissa Mashchak, M.D.
NPI 1245202183 · Gynecology Physician · Ooltewah, TN
Clarissa Mashchak, M.D. is a Gynecology Physician provider in Ooltewah, TN (NPI 1245202183).
Provider details
- NPI number
- 1245202183
- Entity type
- Individual
- Primary specialty
- Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- MD0000018459 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
254 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 87 | $36 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 53 | $167 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 39 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $85 |
| Screening Papanicolaou Smear; Obtaining, Preparing and Conveyance of Cervical Or Vaginal Smear to LaboratoryQ0091 | 27 | $41 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Progesterone, Micronizedbrand: Progesterone | 96 | 25 |
| Estradiolbrand: Estradiol (twice Weekly) | 77 | 22 |
| Estradiol | 56 | 22 |
| Levothyroxine Sodium | 41 | 13 |
| Valacyclovir Hclbrand: Valacyclovir | 33 | 12 |
| Estradiolbrand: Estradiol (once Weekly) | 31 | 11 |
| Estradiolbrand: Dotti |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$140 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-04
- Last updated
- 2025-10-03
- Certified
- 2025-10-03
Frequently asked questions
- What is Clarissa Mashchak's NPI number?
- Clarissa Mashchak's National Provider Identifier (NPI) is 1245202183, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clarissa Mashchak's specialty?
- Clarissa Mashchak is listed in the NPPES registry with a primary specialty of Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Clarissa Mashchak located?
- Clarissa Mashchak's practice location on file with NPPES is 4884 Sunkist Ter, Ooltewah, TN 37363-6851.
- What is Clarissa Mashchak's phone number?
- The practice phone number listed in the NPPES registry for Clarissa Mashchak is (423) 774-8281.
- Is Clarissa Mashchak's NPI active?
- Yes — Clarissa Mashchak's NPI (1245202183) is active in the NPPES registry as of the last update on 2025-10-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.