JERROLD OLSHAN (M.D.) – Pediatric Endocrinology Physician, NPI 1386673382

Pediatric Endocrinology Physician

JERROLD OLSHAN (M.D.) is a healthcare provider. based in Portland, Maine. specializing in Pediatric Endocrinology Physician. They hold the professional credentials M.D.. They hold a License No. 013155 (ME). The NPI Number for JERROLD OLSHAN (M.D.) is 1386673382

Main info

Male

42 Years Of Experience

Accepts Medicare Assignment

Name

JERROLD OLSHAN (M.D.)

NPI

1386673382

Phone

(207) 662-5522

Address

887 CONGRESS ST

Enumeration Date

2 July 2006

Last Update Date

26 November 2014

Doctor Profile

Medical School Name

UNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE

Secondary Phone

2076621360

Graduation Year

1984 (42 years ago)

PAC ID

2365487675

Group Practice PAC ID

9335043967

Professional Enrollment ID

I20050627000677

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience57

Completeness75

Years active:19State licenses:1Digital endpointsOther names

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Provider Addresses for JERROLD OLSHAN (M.D.)

Congress Street Medical Building, 887, Congress Street, West End, Portland, Cumberland County, Maine, 04102, United States
SUITE 320
PORTLAND, ME 041023100
Phone: (207) 662-5522
Fax: (207) 662-5527
Type: Location
301, Route 1, Cumberland County, Maine, 04074, United States
SCARBOROUGH, ME 040747609
Phone: (207) 396-8600
Fax: (207) 396-8632
Type: Mailing

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: 2005-06-27

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
I20050627000677	I	Pediatric Medicine	ME	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 04102)

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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: 9335043967View full group profile

Name	Specialty	State
DR. MARY C. FAHRENBACH (M.D.)	-	ME
MS. LORI A NILAND (PA-C)	-	ME
DR. EVA ZASLAVSKY (M.D.)	-	ME
MARY C BRANDES (MD)	-	ME
AARON R WEISS (DO)	-	ME
LEAH VICTORIA MAHONEY (ANP)	Nurse Practitioner	ME
MARY COLE-ALMGREN (PA-C)	-	ME
DONNA M GUENTHER (ANP)	-	ME
ERIC A BEAVER (PA-C)	-	ME
PAULA VOKEY (LCSW)	-	ME

Reviews

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Frequently asked questions

What number should I use to identify JERROLD OLSHAN (M.D.) for billing?

Administrative and clinical systems typically use NPI 1386673382 for JERROLD OLSHAN (M.D.).

Should I treat JERROLD OLSHAN (M.D.) as an active provider?

Patients and plans typically see JERROLD OLSHAN (M.D.) as active in the national extract.

Which specialty label fits JERROLD OLSHAN (M.D.)?

NPPES ties JERROLD OLSHAN (M.D.) to Pediatric Endocrinology Physician in the taxonomy section. Clinical services aligned with this taxonomy classification.

Can patients visit JERROLD OLSHAN (M.D.) in Portland, Maine?

For routing, start with Portland, Maine for JERROLD OLSHAN (M.D.), then verify phone and hours locally.

What is the difference between NPI and a medical license?

An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.