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Edit this profileWhere to find Weiming R. Yan, M.D.
- Frederick location main office
7109 Guilford Dr Ste 300, Frederick, MD 21704 - Randallstown location
5401 Old Court Rd, Randallstown, MD 21133
About Dr. Yan
Based in Frederick, MD, Weiming R. Yan, M.D. is listed in the NPI registry under gastroenterology. Weiming graduated from Ohio State University College of Medicine in 2008. Weiming is also listed as specializing in internal medicine. According to Medicare claims data, Weiming cared for 577 Medicare patients across 666 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, biopsy of large bowel using a flexible endoscope, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1851552624 identifies this record in the national registry.
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
- (301) 695-6800
- Email not available
Practice Locations
7109 GUILFORD DR STE 300
Frederick, MD 21704
5401 Old Court Rd
Randallstown, MD 21133
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
666 services · 577 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
116 | More often than most peers in Gastroenterology |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
99 | More often than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
78 | More 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 |
223 | More often than most 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 |
107 | More often than most peers in Gastroenterology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
43 | As often as other 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 7
Same specialty, same street address — most likely the same department or group.
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.
Other gastroenterologists in Frederick 4
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Ohio State University College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2008 at Ohio State University College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of large bowel using a flexible endoscope 8
Providers in MD who bill this service to Medicare most often.
Common questions
What is Weiming R. Yan's specialty?
Weiming R. Yan is a gastroenterologist in Frederick, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where can I find Weiming R. Yan?
Weiming R. Yan is listed at 7109 Guilford Dr Ste 300, Frederick, MD 21704. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Weiming R. Yan?
The number on file is (301) 695-6800. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Weiming R. Yan's NPI number?
Weiming R. Yan's National Provider Identifier is 1851552624. 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 Weiming R. Yan's education?
Weiming R. Yan attended Ohio State University College of Medicine, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How long has Weiming R. Yan been practicing?
Weiming R. Yan has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What is Weiming R. Yan known for?
According to Medicare billing data, Weiming R. Yan performs procedures including biopsy of large bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare and 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
Has Weiming R. Yan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Weiming R. Yan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.