ASSEFA WORKU (MD) – Internal Medicine Physician, NPI 1003127986

ASSEFA WORKU (MD) is a healthcare provider. based in San jose, California. specializing in INTERNAL MEDICINE. They hold the professional credentials MD. They hold a License No. A109678 (CA). The NPI Number for ASSEFA WORKU (MD) is 1003127986

Main info

Male
35 Years Of Experience
Accepts Medicare Assignment
Name
ASSEFA WORKU (MD)
NPI
1003127986
Phone
(408) 972-7000
Address
250 HOSPITAL PKWY
Enumeration Date
25 June 2010
Last Update Date
15 December 2021

Doctor Profile

Medical School Name
OTHER
Secondary Phone
4089723000
Graduation Year
1991 (35 years ago)
PAC ID
1355530098
Group Practice PAC ID
8921910225
Professional Enrollment ID
I20110111000266
Address ID
CA951191103SA280XXPKWY300

Contacts

SOAP Endpoint
https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ncalceq
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience44
Completeness85
Years active:15State licenses:1Other namesUpdated within 12 months

21,508 INTERNAL MEDICINE in CA

Provider Addresses for ASSEFA WORKU (MD)

  • 250 HOSPITAL PKWY

    260 INTERNATIONAL CIRCLE

    SAN JOSE, CA 951191103

    Phone: (408) 972-7000

    Fax: (408) 363-4906

    Type: Mailing

  • 250 HOSPITAL PARKWAY

    260 INTERNATIONAL CIRCLE

    SAN JOSE, CA 95119

    Phone: (408) 972-7000

    Fax: (408) 363-4906

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2011-01-11

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20110111000266IInternal MedicineCATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 95119)

Loading plans...

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8921910225View full group profile
NameSpecialtyState
Diagnostic RadiologyCA
Emergency MedicineDC
Colorectal Surgery (Proctology), General SurgeryLA
-CA
N E U R O S U R G E R YMA
Internal MedicineCA
Nurse PractitionerCA
-MA
Emergency MedicineCA
-CA

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

How do payers reference ASSEFA WORKU (MD)?
For ASSEFA WORKU (MD), use NPI 1003127986 as the unique 10-digit identifier.
Would ASSEFA WORKU (MD) appear as active to a payer?
You can treat ASSEFA WORKU (MD) as active for directory purposes; confirm clinical privileges separately.
What expertise is attributed to ASSEFA WORKU (MD)?
ASSEFA WORKU (MD)'s specialty line reads Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
Where in California is ASSEFA WORKU (MD) registered?
Use San Jose, California as the headline location for ASSEFA WORKU (MD) here.
When was this NPI issued?
Enumeration for ASSEFA WORKU (MD) is noted as June 25, 2010 where the registry provides it.

Similar Providers

DR. THUY THU HOANG (MD)

Internal Medicine Physician
South King Road, Little Portugal, San Jose, Santa Clara County, California, 95116, United States
NPI: 1366445413

SMITA GUPTA (MD)

Endocrinology, Diabetes & Metabolism Physician
2690 S WHITE RD STE 50
NPI: 1740284249

DR. NARINDER TREHAN (MD)

Internal Medicine Physician
700, Nighthawk Way, North Palm Beach, Palm Beach County, Florida, 33408, United States
NPI: 1215932249

GEORGE LABBAN (M.D.)

Medical Oncology Physician
2589 SAMARITAN DR
NPI: 1114925542

DR. TUAN LE (M.D.)

Internal Medicine Physician
1569 LEXANN AVE
NPI: 1982602710

DR. VINH QUY NGUYEN (M.D.)

Internal Medicine Physician
200, Jose Figueres Avenue, Little Portugal, San Jose, Santa Clara County, California, 95116, United States
NPI: 1720086556

HOWARD L RICE (MD)

Internal Medicine Physician
Mountain View, Tonyrefail, Hendreforgan, Rhondda Cynon Taf, Wales, CF39 8JG, United Kingdom
NPI: 1114927134

DR. DON DINH TRAN (M.D.)

Internal Medicine Physician
2611 SENTER RD STE 238
NPI: 1881688950