CHRISTOPHER BYERRUM SEAMAN M.D.
Complete NPI Record 1306030242
Internal Medicine - Cardiovascular Disease in Riverside, CA

Active since September 04, 2007PECOS EnrolledAccepts Medicare Assignment
3770 ELIZABETH ST, RIVERSIDE, CA 92506(951) 352-3937 Get Directions

NPPES record last updated: December 6, 2018. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Dec 6, 2018, Sep 20, 2018 (2 updates tracked since 2018).

Complete NPI Dataset

This page contains the complete raw NPPES record for Christopher Byerrum Seaman, M.D. (NPI 1306030242), an individual internal medicine provider in Riverside, CA. All 32 fields on file are listed with their current values and official NPPES definitions, exactly as recorded in the National Plan and Provider Enumeration System. Only fields that contain data are included, so the number of fields shown varies from one NPI record to another.

Use the tools below to filter fields by category, search within the record, or jump straight to a specific field. You can download the full record as a CSV, JSON, or text file, or filter first and export only the fields you need. The Print Clean Summary button produces a printer-friendly copy of the record.

Registry File Document Utilities
NPI: 1306030242
Field 1/32
The 10-position all-numeric identification number assigned by the NPS to uniquely identify a health care provider. The NPI number includes an ISO standard check-digit in the 10th position. There is no intelligence about the health care provider in the number.
Entity Type Code: 1
Field 2/32
Code describing the type of health care provider that is being assigned an NPI. Codes are 1 = (Person): individual human being who furnishes health care; 2 = (Non-person): entity other than an individual human being that furnishes health care (for example, hospital, SNF, hospital subunit, pharmacy, or HMO).
Provider Last Name Legal Name: SEAMAN
Field 3/32
The last name of the provider. If the provider is an individual, this is the legal name.
Provider First Name: CHRISTOPHER
Field 4/32
The first name of the provider, if the provider is an individual.
Provider Middle Name: BYERRUM
Field 5/32
The middle name of the provider, if the provider is an individual.
Provider Credential Text: M.D.
Field 6/32
The abbreviations for professional degrees or credentials used or held by the provider, if the provider is an individual. Examples are MD, DDS, CSW, CNA, AA, NP, RNA, or PSY. These credential designations will not be verified by NPS.
Provider First Line Business Mailing Address: 3770 ELIZABETH ST
Field 7/32
The first line mailing address of the provider being identified. This data element may contain the same information as "Provider first line location address".
Provider Business Mailing Address City Name: RIVERSIDE
Field 8/32
The city name in the mailing address of the provider being identified.
Provider Business Mailing Address State Name: CA
Field 9/32
The State or Province name in the mailing address of the provider being identified. This data element may contain the same information as "Provider location address State name".
Provider Business Mailing Address Postal Code: 925062527
Field 10/32
The postal ZIP or zone code in the mailing address of the provider being identified. NOTE: ZIP code plus 4-digit extension, if available. This data element may contain the same information as "Provider location address postal code".
Provider Business Mailing Address Country Code If outside U S : US
Field 11/32
The country code in the mailing address of the provider being identified. This data element may contain the same information as "Provider location address country code".
Provider First Line Business Practice Location Address: 3770 ELIZABETH ST
Field 12/32
The first line location address of the provider being identified. For providers with more than one physical location, this is the primary location. This address cannot include a Post Office box.
Provider Business Practice Location Address City Name: RIVERSIDE
Field 13/32
The city name in the location address of the provider being identified.
Provider Business Practice Location Address State Name: CA
Field 14/32
The State code in the location of the provider being identified.
Provider Business Practice Location Address Postal Code: 925062527
Field 15/32
The postal ZIP or zone code in the location address of the provider being identified. NOTE: ZIP code plus 4-digit extension, if available.
Provider Business Practice Location Address Country Code If outside U S : US
Field 16/32
The country code in the location address of the provider being identified.
Provider Business Practice Location Address Telephone Number: 9513523937
Field 17/32
The telephone number associated with the location address of the provider being identified.
Provider Gender Code: M
Field 20/32
The code designating the provider's gender if the provider is a person.
Healthcare Provider Taxonomy Code 1: 207RC0000X
Field 21/32
This field represents the provider's taxonomy code, which classifies their type, classification, and area of specialization. This code comes from the Healthcare Provider Taxonomy Code Set maintained by the National Uniform Claim Committee (NUCC). The NPS will associate these data with the license data for providers with Entity type code = 1.
Provider License Number 1: MD448744
Field 22/32
The license number issued to the provider being identified. The NPS can accommodate multiple license numbers for multiple specialties and for multiple States. The NPS will associate this data element with "provider taxonomy code".
Provider License Number State Code 1: PA
Field 23/32
The two-letter state code representing the U.S. state or territory that issued the provider's license. This field is linked to the Provider License Number field and identifies the jurisdiction where that license is valid. A provider may have multiple state codes if they hold licenses in more than one state.
Healthcare Provider Primary Taxonomy Switch 1: N
Field 24/32
This field shows whether the related taxonomy code is the provider's primary specialty. It is a single-character value: "Y" indicates the taxonomy is the primary one, while "N" indicates it is not. Each provider record can have only one taxonomy code marked as primary.
Healthcare Provider Taxonomy Code 2: 207RC0000X
Field 25/32
This field represents the provider's taxonomy code, which classifies their type, classification, and area of specialization. This code comes from the Healthcare Provider Taxonomy Code Set maintained by the National Uniform Claim Committee (NUCC). The NPS will associate these data with the license data for providers with Entity type code = 1.
Provider License Number 2: A101377
Field 26/32
The license number issued to the provider being identified. The NPS can accommodate multiple license numbers for multiple specialties and for multiple States. The NPS will associate this data element with "provider taxonomy code".
Provider License Number State Code 2: CA
Field 27/32
The two-letter state code representing the U.S. state or territory that issued the provider's license. This field is linked to the Provider License Number field and identifies the jurisdiction where that license is valid. A provider may have multiple state codes if they hold licenses in more than one state.
Healthcare Provider Primary Taxonomy Switch 2: Y
Field 28/32
This field shows whether the related taxonomy code is the provider's primary specialty. It is a single-character value: "Y" indicates the taxonomy is the primary one, while "N" indicates it is not. Each provider record can have only one taxonomy code marked as primary.
Other Provider Identifier 1: 103013248 0001
Field 29/32
An additional identifier number for the provider, either current or previously used. This may include IDs issued by health plans, state agencies, or other organizations. The value is collected from the NPI application or update form.
Other Provider Identifier Type Code 1: 05
Field 30/32
A code that specifies the type of additional identifier associated with the provider, either current or past. Examples include UPIN (Universal Provider Identification Number), NSC (National Supplier Clearinghouse), OSCAR (CMS Certification Number), DEA (Drug Enforcement Administration number), state Medicaid ID, or a plan-specific PIN. The value is collected from the NPI application or update form.
Other Provider Identifier State 1: PA
Field 31/32
The two-letter state code representing the U.S. state or territory that issued the additional provider identifier. This links the Other Provider Identifier to the state where it is valid or was assigned.
Is Sole Proprietor: N
Field 32/32
Indicates whether the provider is registered as a sole proprietor. This is a single-character code: "Y" means the provider operates as a sole proprietor, and "N" means they do not.

Secondary Practice Locations 2

The first line of the secondary practice location address of the provider being identified. For providers with more than one physical location, this is a secondary practice location address. This address cannot include a Post Office box.

915 Old Fern Hill Rd, Bldg A - Suite 5
Location 1/2
West Chester, PA 19380-4269 · Phone (610) 696-2850 · Fax (610) 696-7159
450 S Washington St Ste A
Location 2/2
Gettysburg, PA 17325-2500 · Phone (717) 339-3105 · Fax (717) 339-3107

Other Provider Identifiers 1

Legacy and payer-issued identifiers reported to the NPPES registry for this provider.

103013248 0001 Medicaid
Identifier 1/1
State: PA
Medicaid (State-specific): A provider identification number assigned by an individual state's Medicaid program, used for billing and enrollment within that state's Medicaid system.
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