What is Catherine Tsai's NPI number?

Catherine Tsai's National Provider Identifier (NPI) is 1356337935, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Catherine Tsai's specialty?

Catherine Tsai is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).

Where is Catherine Tsai located?

Catherine Tsai's practice location on file with NPPES is 212 E Central Ave Ste 245, Spokane, WA 99208-6289.

What is Catherine Tsai's phone number?

The practice phone number listed in the NPPES registry for Catherine Tsai is (509) 489-2600.

Does Catherine Tsai accept Medicare?

Catherine Tsai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Catherine Tsai's NPI active?

Yes — Catherine Tsai's NPI (1356337935) is active in the NPPES registry as of the last update on 2023-08-23.

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Catherine Tsai, MD

NPI 1356337935 · Gastroenterology Physician · Spokane, WA

Catherine Tsai, MD is a Gastroenterology Physician provider in Spokane, WA (NPI 1356337935).

Provider details

NPI number: 1356337935
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: Yes
License: MD00039114 (WA)

Practice location

212 E Central Ave Ste 245

Spokane, WA 99208-6289

Phone: (509) 489-2600

Street-level locationGet directions

More WA providers

Mailing address

Po Box 421

Liberty Lake, WA 99019-0421

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100XLicense MD00039114 (WA)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(67/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
21 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
72 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43235	29	$112
Diagnostic Exam of Large Bowel Using a Flexible Endoscope45378	16	$174
Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239	15	$111
Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500	12	$5

Typical Medicare-allowed amounts for these services range $5–$174 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

Enumerated: 2005-09-20
Last updated: 2023-08-23
Certified: 2023-08-23

Frequently asked questions

What is Catherine Tsai's NPI number?: Catherine Tsai's National Provider Identifier (NPI) is 1356337935, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Catherine Tsai's specialty?: Catherine Tsai is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
Where is Catherine Tsai located?: Catherine Tsai's practice location on file with NPPES is 212 E Central Ave Ste 245, Spokane, WA 99208-6289.
What is Catherine Tsai's phone number?: The practice phone number listed in the NPPES registry for Catherine Tsai is (509) 489-2600.
Does Catherine Tsai accept Medicare?: Catherine Tsai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Catherine Tsai's NPI active?: Yes — Catherine Tsai's NPI (1356337935) is active in the NPPES registry as of the last update on 2023-08-23.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43235	29	$112
Diagnostic Exam of Large Bowel Using a Flexible Endoscope45378	16	$174
Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239	15	$111
Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500	12	$5

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)