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Edit this profileAt a glance
- 3100 Maccorkle Ave Se, Ste 509, Charleston, WV 25304
About Dr. Subik
Marc A. Subik, M.D. is a healthcare provider in Charleston, WV specializing in gastroenterology. Medicare claims data shows Marc provided 172 services to 150 patients. The services billed most often include initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope. This provider record is associated with NPI 1922044221.
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
- (304) 342-0821
- Email not available
Practice Locations
3100 MACCORKLE AVE SE STE 509
Charleston, WV 25304
Conditions Commonly Evaluated or Treated
Within Gastroenterology 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
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
172 services · 150 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
17 | Less often than most peers in Gastroenterology |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
76 | More often than most peers in Gastroenterology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
49 | As often as other peers in Gastroenterology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
16 | Less often than most peers in Gastroenterology |
| 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 Gastroenterology |
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 gastroenterologists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
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 — 29 related providers in 4 groups
Other gastroenterologists in Charleston 7
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1979 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 6
Providers in WV who bill this service to Medicare most often.
Common questions
What is Marc A. Subik's specialty?
Marc A. Subik is a gastroenterologist in Charleston, WV. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where can I find Marc A. Subik?
Marc A. Subik is listed at 3100 Maccorkle Ave Se Ste 509, Charleston, WV 25304. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Marc A. Subik?
The number on file is (304) 342-0821. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Marc A. Subik?
Marc A. Subik's National Provider Identifier is 1922044221. 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
What is Marc A. Subik's education?
Marc A. Subik attended Other, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Marc A. Subik have?
Marc A. Subik has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What is Marc A. Subik known for?
According to Medicare billing data, Marc A. Subik performs procedures including biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Marc A. Subik's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Marc A. Subik. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.