Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Donald Morley Null, Jr., MD

Neonatal-Perinatal Medicine Physician in Sacramento, CA · enumerated 2006.

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

National Provider Identifier

1013096585

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Registry record

Entity type Individual (Type 1)

Name Donald Morley Null, Jr.

Credential MD

Sex Male

Practice address 2315 Stockton Blvd, Nicu, Sacramento, CA, 95817

Phone (916) 703-3050

Fax (916) 703-3055

Enumeration date Nov 3, 2006

Last updated in NPPES Jul 15, 2015

Taxonomy & licenses

2080N0001X Neonatal-Perinatal Medicine Physician Allopathic & Osteopathic Physicians · License 378985-1205 (UT) Secondary

2080N0001X Neonatal-Perinatal Medicine Physician Allopathic & Osteopathic Physicians · License G135717 (CA) Primary

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

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Donald Null, Jr. practice?

The practice location on file with NPPES is in Sacramento, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Donald Null, Jr.?

The National Provider Identifier (NPI) for Donald Null, Jr. is 1013096585, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-15.