DR. BENJAMIN F MERRIFIELD MD
NPI 1083695167
Internal Medicine - Gastroenterology in Olympia, WA

Q: What is Benjamin Merrifield's NPI number?

The NPI number for Benjamin Merrifield is 1083695167. It was assigned to this individual provider in the NPPES registry on November 7, 2005.

Q: What is Benjamin Merrifield's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since November 07, 2005PECOS EnrolledAccepts Medicare Assignment

209 LILLY RD NE, OLYMPIA, WA 98506(360) 413-8250(360) 413-8830 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 7, 2023, Apr 21, 2021, Oct 29, 2020 and 2 more (5 updates tracked since 2018).

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About Dr. Benjamin F Merrifield Md NPPES

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

DR. BENJAMIN F MERRIFIELD MD (NPI 1083695167) is an individual gastroenterology provider in Olympia, Washington, licensed in Washington (MD00044510) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Providence St Peter Hospital, and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (1998).

NPPES Registry Identity

NPI1083695167

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. BENJAMIN F MERRIFIELDCredential: MD

Location Address209 LILLY RD NEOlympia, WA 98506

Mailing Address209 Lilly Rd NeOlympia, WA 98506 · (360) 413-8250 · Fax (360) 413-8830

Phone(360) 413-8250

Fax(360) 413-8830

Sole ProprietorNo

Medical School CMSClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv UniversityGraduated 1998

Enumeration DateNovember 7, 2005

Last NPPES UpdateMarch 7, 20235 updates tracked since enumeration

NPPES CertifiedApril 21, 2021

✔ NPI 1083695167 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in WA · MD00044510

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

209 LILLY RD NE, Olympia, WA 98506

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Other Identifiers 1

OtherMD00044510WA · Md License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.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

Dr. Benjamin F Merrifield Md 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 ID6901845999

PECOS Enrollment IDI20050428000941

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 7

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

28 services28 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

25 services25 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

18 services18 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

14 services13 patients

Insertion of guide wire with dilation of esophagus using a flexible endoscope 43248

This is a procedure where a thin tube, called an endoscope, is gently passed through your mouth into your esophagus. A guide wire is then inserted to help widen any narrow areas. This helps improve swallowing and reduce discomfort.

12 services12 patients

Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43255

This procedure involves using a flexible tube with a light, called an endoscope, to examine and treat bleeding in the esophagus, stomach, or upper small bowel. It's a safe, effective way to control bleeding and ensure your digestive health.

12 services11 patients

Hospital Affiliations CMS Care Compare

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

Providence St Peter Hospital

Acute Care Hospitals · Olympia, WA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500024

Location413 Lilly Road NEOlympia, WA 98506 · Thurston County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98506 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

$130.99 typical visit price

range $57.27 – $172.80

Typical copayment $32.74 (range $14.31 – $43.20)

Most-billed visit code 99204

Established Patient

$100.78 typical visit price

range $18.56 – $141.11

Typical copayment $25.19 (range $4.64 – $35.27)

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.

Other Providers at the Same Location NPPES 20

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

MR. DENNIS D SNELSON JR. CRNA

Nurse Anesthetist, Certified Registered