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Edit this profileWhere to find Benjamin F. Merrifield, MD
- Olympia location main office
209 Lilly Rd Ne, Olympia, WA 98506 - Olympia location
500 Lilly Rd NE, Suite 204, Olympia, WA 98506
About Dr. Merrifield
Benjamin F. Merrifield, MD practices gastroenterology in Olympia, WA. Benjamin is a 1998 graduate of Clvlnd Clinic Lerner College of Med of Case Wstn RSV University. Medicare claims data shows Benjamin provided 121 services to 119 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, diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope, and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope. The provider's National Provider Identifier (NPI) is 1083695167.
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
- (360) 413-8250
- Email not available
Practice Locations
209 LILLY RD NE
Olympia, WA 98506
500 Lilly Rd NE Suite 204
Olympia, WA 98506
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
121 services · 119 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
25 | More often than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
18 | Less often than most peers in Gastroenterology |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
14 | Less often than most peers in Gastroenterology |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
12 | Less often than most peers in Gastroenterology |
| Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43255 |
12 | Less often than most peers in Gastroenterology |
| Insertion of guide wire with dilation of esophagus using a flexible endoscope | Procedure | 43248 |
12 | 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 |
28 | 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 8
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 Olympia 5
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Clvlnd Clinic Lerner College of Med of Case Wstn RSV University 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at Clvlnd Clinic Lerner College of Med of Case Wstn RSV University 7
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 8
Providers in WA who bill this service to Medicare most often.
Common questions
What does Dr. Merrifield specialize in?
Dr. Merrifield is a gastroenterologist in Olympia, WA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Dr. Merrifield located?
Dr. Merrifield is listed at 209 Lilly Rd Ne, Olympia, WA 98506. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Merrifield's phone number?
The number on file is (360) 413-8250. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Merrifield?
Dr. Merrifield's National Provider Identifier is 1083695167. 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. Merrifield go to medical school?
Dr. Merrifield attended Clvlnd Clinic Lerner College of Med of Case Wstn RSV University, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Merrifield have?
Dr. Merrifield has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Merrifield do most often?
According to Medicare billing data, Dr. Merrifield performs procedures including diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope and diagnostic exam of large 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 Dr. Merrifield's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Merrifield. If this is you, claiming it is free.
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