Cynthia Brock, DO
NPI 1508861899 · Family Medicine Physician · Marietta, OH
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cynthia Brock, DO is a Family Medicine Physician provider in Marietta, OH (NPI 1508861899).
Provider details
- NPI number
- 1508861899
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- Yes
- License
- 34007080 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 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
1,194 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 669 | $92 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 293 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 152 | $62 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 | 29 | $131 |
| Physician Or Allowed Practitioner Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians andG0180 | 26 | $49 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 141 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 425 | 109 |
| Atorvastatin Calcium | 420 | 121 |
| Lisinopril | 411 | 117 |
| Rosuvastatin Calcium | 400 | 119 |
| Losartan Potassium | 261 | 76 |
| Amlodipine Besylate | 258 | 76 |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$284 across 16 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
- 2005-06-15
- Last updated
- 2025-06-19
- Certified
- 2025-06-19
Frequently asked questions
- What is Cynthia Brock's NPI number?
- Cynthia Brock's National Provider Identifier (NPI) is 1508861899, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Brock's specialty?
- Cynthia Brock is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Cynthia Brock located?
- Cynthia Brock's practice location on file with NPPES is 330 E 8th St Ste 151, Marietta, OH 45750-3383.
- What is Cynthia Brock's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Brock is (740) 374-4945.
- Does Cynthia Brock accept Medicare?
- Cynthia Brock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cynthia Brock's NPI active?
- Yes — Cynthia Brock's NPI (1508861899) is active in the NPPES registry as of the last update on 2025-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.