MS. IRIS ANN PFEFFER (LISW-S) – Clinical Social Worker, NPI 1801033667

Clinical Social Worker

MS. IRIS ANN PFEFFER (LISW-S) is a healthcare provider. based in Hamilton, Ohio. specializing in Clinical Social Worker. They hold the professional credentials LISW-S. They hold a License No. 7259 (CA). The NPI Number for MS. IRIS ANN PFEFFER (LISW-S) is 1801033667

Main info

Female

Sole Proprietor

50 Years Of Experience

Accepts Medicare Assignment

Name

MS. IRIS ANN PFEFFER (LISW-S)

NPI

1801033667

Phone

(513) 737-0545

Address

1499 MAIN ST

Enumeration Date

15 January 2009

Last Update Date

7 July 2016

Doctor Profile

Medical School Name

OTHER

Secondary Phone

5135782087

Graduation Year

1976 (50 years ago)

PAC ID

9234369349

Group Practice PAC ID

2860789575

Professional Enrollment ID

I20140310001970

Data current as of

20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience53

Completeness75

Years active:17State licenses:1Digital endpointsOther names

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Provider Addresses for MS. IRIS ANN PFEFFER (LISW-S)

Main Street, Hamilton, Butler County, Ohio, 45013, United States
1
HAMILTON, OH 450131075
Phone: (513) 737-0545
Fax: (513) 737-0545
Mailing address matches the actual address.

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.

No Medicare enrollment or revalidation data available for this provider in our database.

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 45013)

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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: 2860789575View full group profile

Name	Specialty	State
LISA A GATES (R.N. BSN)	-	OH

Reviews

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Frequently asked questions

Does MS. IRIS ANN PFEFFER (LISW-S) share an NPI with anyone else?

NPI numbers are unique to each provider or organization — MS. IRIS ANN PFEFFER (LISW-S) uses 1801033667.

Does CMS list MS. IRIS ANN PFEFFER (LISW-S) as active?

Yes — MS. IRIS ANN PFEFFER (LISW-S) is active in the NPI listing used on this page.

What taxonomy line describes MS. IRIS ANN PFEFFER (LISW-S)?

For research purposes, treat MS. IRIS ANN PFEFFER (LISW-S) as Clinical Social Worker in this dataset. Clinical services aligned with this taxonomy classification.

What address line appears for MS. IRIS ANN PFEFFER (LISW-S)?

MS. IRIS ANN PFEFFER (LISW-S)'s geographic hint is Hamilton, Ohio in our summary view.

Is the information about MS. IRIS ANN PFEFFER (LISW-S) up to date?

Data updates when providers file changes in NPPES — treat critical facts as "verify if unsure."