Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Peter D Calder, M.D.

Ophthalmology Physician in Wyomissing, PA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1043201106

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Registry record

Entity type Individual (Type 1)

Name Dr. Peter D Calder

Credential M.D.

Sex Male

Practice address 1802 Papermill Rd, Wyomissing, PA, 19610

Phone (610) 372-0712

Fax (610) 376-6968

Enumeration date Oct 28, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD045426E (PA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
4339006	Other	PA	AETNA
0014300700001	Medicaid	PA	-
147426	Other	PA	HIGHMARK BLUE SHIELD
0669781000	Other	PA	KEYSTONE HEALTH EAST
0014300700001	Other	PA	RAILROAD MEDICARE
01640702	Other	PA	CAPITAL BLUE CROSS

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Peter Calder's NPI record?

Cross-check NPI 1043201106 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1043201106 active?

Yes, as of the latest NPPES snapshot, NPI 1043201106 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.