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CYNTHIA BROCK DO
NPI 1508861899
Family Medicine in Marietta, OH

Active since June 15, 2005PECOS EnrolledAccepts Medicare Assignment
330 E 8TH ST STE 151, MARIETTA, OH 45750(740) 374-4945(740) 374-4943 Get Directions Write a Review

NPPES record last updated: June 19, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 19, 2025, Sep 12, 2024, Aug 25, 2021 and 6 more (9 updates tracked since 2017).

About Cynthia Brock Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CYNTHIA BROCK DO (NPI 1508861899) is an individual family medicine provider in Marietta, Ohio, licensed in Ohio (34007080) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS, is affiliated with Marietta Memorial Hospital, and is a graduate of West Virginia School Of Osteopathic Medicine (1995).

NPPES Registry Identity

NPI1508861899
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameCYNTHIA BROCKCredential: DO
Location Address330 E 8TH ST STE 151Marietta, OH 45750-3383
Mailing Address416 Colegate Dr Bldg 3Marietta, OH 45750-9549 · (740) 374-3526 · Fax (740) 374-3165
Phone(740) 374-4945
Fax(740) 374-4943
Sole ProprietorYes
Medical School CMSWest Virginia School Of Osteopathic MedicineGraduated 1995
Enumeration DateJune 15, 2005
Last NPPES UpdateJune 19, 20259 updates tracked since enumeration
NPPES CertifiedJune 19, 2025
✔ NPI 1508861899 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in OH · 34007080
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
330 E 8TH ST STE 151, Marietta, OH 45750
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Other Names 1

Former Name (1)Cynthia Martinsen Do

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Antidote Health Plan of Ohio, Inc., CareSource and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Cynthia Brock Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7719874650
PECOS Enrollment IDI20040303001267
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
669 services309 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
293 services293 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
152 services112 patients
Transitional care management services for problem of at least moderate complexity 99495
Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.
29 services27 patients
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 and G0180
This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.
26 services22 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
25 services23 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Marietta Memorial Hospital

Acute Care Hospitals · Marietta, OH
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number360147
Location401 Matthew StreetMarietta, OH 45750 · Washington County
Emergency services Birthing friendly

Selby General Hospital

Critical Access Hospitals · Marietta, OH
OwnershipVoluntary non-profit - Private
CMS Certification Number361319
Location1106 Colegate DriveMarietta, OH 45750 · Washington County
Emergency services

Camden Clark Medical Center

Acute Care Hospitals · Parkersburg, WV
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number510058
Location800 Garfield AveParkersburg, WV 26101 · Wood County
Emergency services Birthing friendly

Sistersville General Hospital

Critical Access Hospitals · Sistersville, WV
OwnershipVoluntary non-profit - Private
CMS Certification Number511304
Location314 South Wells StreetSistersville, WV 26175 · Tyler County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 45750 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.72 typical visit price
range $54.34 – $166.65
Typical copayment $21.18 (range $13.58 – $41.66)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
11 suppliers59 claims129 services$5.57 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
7 suppliers24 claims27 services$1.09 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers16 claims16 services$99.15 avg. paid by Medicare
Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620
DME-Drugs Administered Through DME · category DG006N
3 suppliers17 claims1,950 services$0.09 avg. paid by Medicare
Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513
DME-Other DME · category DE000N
3 suppliers15 claims15 services$20.82 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CASSIDY ERICKSON PA-C
Physician Assistant
330 E 8TH ST STE 151
MARIETTA, OH 45750
Washington County (740) 374-4945
ALISON ATKINSON PA-C
Physician Assistant
330 E 8TH ST STE 151
MARIETTA, OH 45750
Washington County (740) 374-4945
ANDREA KOSTELAC NP
Nurse Practitioner (Family)
330 E 8TH ST STE 151
MARIETTA, OH 45750
Washington County (740) 374-4945
AMADO GABRIEL MAIJUB M.D., PHD
Family Medicine
330 E 8TH ST STE 151
MARIETTA, OH 45750
Washington County (740) 374-4945

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cynthia Brock's NPI number?

The NPI number for Cynthia Brock is 1508861899. It was assigned to this individual provider in the NPPES registry on June 15, 2005. The provider is also known as Cynthia Martinsen Do.

Where is Cynthia Brock located?

Cynthia Brock practices at 330 E 8th St Ste 151, Marietta, OH 45750. The listed phone number is (740) 374-4945.

What is Cynthia Brock's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Cynthia Brock enrolled in Medicare?

Yes. Cynthia Brock is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Cynthia Brock accept?

Health plans from Anthem Blue Cross and Blue Shield, Antidote Health Plan of Ohio, Inc., CareSource, MedMutual and Molina Healthcare list Cynthia Brock as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Cynthia Brock affiliated with any hospitals?

According to CMS data, Cynthia Brock is affiliated with Marietta Memorial Hospital, Selby General Hospital, Camden Clark Medical Center and Sistersville General Hospital.

When was this NPI record last updated?

The NPPES record for Cynthia Brock was last updated on June 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.