MERCEDES MARIA SERAFINI – Clinical Social Worker, NPI 1346579992

Clinical Social Worker

MERCEDES MARIA SERAFINI is a healthcare provider. based in Buena park, California. specializing in CLINICAL SOCIAL WORKER. They hold a License No. LCS26546 (CA). The NPI Number for MERCEDES MARIA SERAFINI is 1346579992

Main info

Female

23 Years Of Experience

Accepts Medicare Assignment

Name

MERCEDES MARIA SERAFINI

NPI

1346579992

Phone

(562) 902-9453

Address

6880 ORANGETHORPE AVE STE F

Enumeration Date

10 December 2009

Last Update Date

10 December 2021

Doctor Profile

Medical School Name

OTHER

Secondary Phone

5624613000

Graduation Year

2003 (23 years ago)

PAC ID

3678864550

Group Practice PAC ID

6002729175

Professional Enrollment ID

I20160623001570

Address ID

CA907062246BE9400XAVEX300

Contacts

SOAP Endpoint

https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/scalceq

Data current as of

20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience56

Completeness85

Years active:16State licenses:1Other namesUpdated within 12 months

4,987 CLINICAL SOCIAL WORKER in CA

Provider Addresses for MERCEDES MARIA SERAFINI

6880 ORANGETHORPE AVE STE F
BUENA PARK, CA 906201370
Phone: (562) 902-9453
Type: Mailing
5150 E PCH STE 100
LONG BEACH, CA 908043394
Phone: (562) 490-7600
Fax: (562) 490-7601
Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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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: 2016-06-23

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

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

Medicare enrolled
On CMS revalidation list
Due date assigned
Revalidate in PECOS

CMS enrollment records

Enrollment ID	Type	Specialty	State	Due date
I20160623001570	I	Clinical Social Worker	CA	TBD

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 90620)

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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: 6002729175View full group profile

Name	Specialty	State
DR. CHRISTOPHER F TENGGARDJAJA (M.D.)	U R O L O G Y	OH
ANNA TERESA MENDOZA TSAY (ANP-BC)	Nurse Practitioner	CA
DR. MATTHEW JAMES ROOSEVELT (M.D.)	Internal Medicine	CA
DEAN T. NORA (MD)	-	CA
MARGARET M. STONE (MD)	-	CA
RACHEL M TOMAN (NP)	-	CA
ROBERT L. RUDEK (MD)	-	CA
MARTIN P. MURILLO (MD)	Family Practice	CA
ROBERT M. THEAL (MD)	Family Practice	CA
TAYLOR HO (MD)	General Surgery	CA