SUMIN TAMMY LI M.D.
NPI 1205086337
General Practice in Washington, IA
About Sumin Tammy Li M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SUMIN TAMMY LI M.D. (NPI 1205086337) is an individual general practice provider in Washington, Iowa, licensed in Iowa (MD-42864) and active in the NPI registry since September 2008. She is enrolled in Medicare PECOS, is affiliated with Keokuk County Health Center, and maintains a secondary practice location in Iowa City.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Sumin Tammy Li M.d. 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.
Medicare Billing Reassignments
6Medicare enrollment records show Sumin Li reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Richland, IA 52585
- Reassigned Medicare billing, Iowa enrollment
- Also billed through NPI 1376648329 (Iowa)
- 79 clinicians in this Medicare group
Sigourney, IA 52591
- Reassigned Medicare billing, Iowa enrollment
- Also billed through NPI 1376611103 (Iowa)
- 45 clinicians in this Medicare group
Ottumwa, IA 52501
- Reassigned Medicare billing, Iowa enrollment
- 57 clinicians in this Medicare group
Leon, IA 50144
- Reassigned Medicare billing, Iowa enrollment
- 72 clinicians in this Medicare group
Perry, IA 50220
- Reassigned Medicare billing, Iowa enrollment
- Also billed through NPI 1669477089 (Iowa)
- 57 clinicians in this Medicare group
Havasu Lake, CA 92363
- Reassigned Medicare billing, Texas enrollment
- 208 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Keokuk County Health Center
Critical Access Hospitals · Sigourney, IAMonroe County Hospital
Critical Access Hospitals · Albia, IAJefferson County Health Center
Critical Access Hospitals · Fairfield, IAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WASHINGTON, IA 52353
WASHINGTON, IA 52353
WASHINGTON, IA 52353
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Sumin Li's NPI number?
The NPI number for Sumin Li is 1205086337. It was assigned to this individual provider in the NPPES registry on September 25, 2008.
Where is Sumin Li located?
Sumin Li practices at 400 E Polk St, Washington, IA 52353. The listed phone number is (319) 550-5118.
What is Sumin Li's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is Sumin Li enrolled in Medicare?
Yes. Sumin Li is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Sumin Li's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sumin Li reassigns Medicare benefits to 6 organizations: Jefferson County Hospital (Richland, IA), Keokuk County Health Center (Sigourney, IA), Mercy Medical Center-Centerville (Ottumwa, IA), Decatur County Hospital (Leon, IA), Dallas County Hospital (Perry, IA) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sumin Li's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sumin Li accept?
Health plans from Oscar Health, Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Sumin Li as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Sumin Li affiliated with any hospitals?
According to CMS data, Sumin Li is affiliated with Keokuk County Health Center, Monroe County Hospital and Jefferson County Health Center.
When was this NPI record last updated?
The NPPES record for Sumin Li was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Sumin Tammy Li, M.D. · NPI 1205086337
General Practice physician in Washington, Iowa. Individual provider, active in the CMS NPPES registry since September 25, 2008.
## Identity
- **NPI:** 1205086337 (Entity type: Individual)
- **Enumerated:** September 25, 2008
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **State license:** MD-42864 (Iowa)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 E POLK ST, Washington, IA 52353-1237
- **Phone:** (319) 550-5118
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Jefferson County Hospital (NPI 1881294536, Richland, IA); Keokuk County Health Center (NPI 1073898649, Sigourney, IA); Mercy Medical Center-Centerville (NPI 1093360679, Ottumwa, IA); Decatur County Hospital (NPI 1144209255, Leon, IA); Dallas County Hospital (NPI 1861416307, Perry, IA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Georgetown University School Of Medicine, class of 2008
## Record status
- **NPPES last updated:** March 17, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1205086337) · Data from the CMS NPPES public registry.