Are you Dr. Mostertz? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileWhere to find William C. Mostertz, MD
- Chapel Hill location main office
160 Dental Cir, Chapel Hill, NC 27599 - Charleston location
30 Courtenay Drive, Charleston, SC 29425
About Dr. Mostertz
William C. Mostertz, MD is a healthcare provider in Chapel Hill, NC specializing in internal medicine. William trained at Medical University of South Carolina College of Medicine, graduating in 2016. William is also listed as specializing in student in an organized health care education program. According to Medicare claims data, William cared for 253 Medicare patients across 617 services. The services billed most often include critical care, first 30-74 minutes, evaluation of lower heart chamber assist device, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes. This provider record is associated with NPI 1679928022.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (919) 966-5205
- Email not available
Practice Locations
160 DENTAL CIR
Chapel Hill, NC 27599
30 Courtenay Drive
Charleston, SC 29425
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
Heart & Circulation
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
Office procedures
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
Screenings & Diagnostics
- Bone Density Scan Referral
- Diabetes Screening and A1C Test
Sexual health
- STI Testing
Procedures Most Often Billed to Medicare
617 services · 253 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Evaluation of lower heart chamber assist device | Treatment | 93750 |
128 | More often than most peers in Internal Medicine |
| Insertion of tube in right heart chambers for measurement | Treatment | 93451 |
15 | Less often than most peers in Internal Medicine |
| Critical care, first 30-74 minutes | Office visit | 99291 |
162 | More than most peers in Internal Medicine |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
98 | As often as other peers in Internal Medicine |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
71 | More often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
52 | More often than most peers in Internal Medicine |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
45 | Less often than most peers in Internal Medicine |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
18 | Less often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
14 | Less often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
14 | Less often than most peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other internists in Chapel Hill 8
Same specialty, same city.
Trained at Medical University of South Carolina College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2016 at Medical University of South Carolina College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Evaluation of lower heart chamber assist device 8
Providers in NC who bill this service to Medicare most often.
Common questions
What does Dr. Mostertz specialize in?
Dr. Mostertz is an internist in Chapel Hill, NC. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Dr. Mostertz located?
Dr. Mostertz is listed at 160 Dental Cir, Chapel Hill, NC 27599. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Mostertz's phone number?
The number on file is (919) 966-5205. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Mostertz's NPI number?
Dr. Mostertz's National Provider Identifier is 1679928022. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Mostertz go to medical school?
Dr. Mostertz attended Medical University of South Carolina College of Medicine, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Mostertz been practicing?
Dr. Mostertz has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Mostertz do most often?
According to Medicare billing data, Dr. Mostertz provides treatments such as evaluation of lower heart chamber assist device and insertion of tube in right heart chambers for measurement, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Mostertz confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mostertz. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.