Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christine Marie Hallman, DNP, APRN,ACHPN,NP-C

Nurse Practitioner in Columbia, MD · enumerated 2013.

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

National Provider Identifier

1275960635

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Registry record

Entity type Individual (Type 1)

Name Dr. Christine Marie Hallman

Credential DNP, APRN,ACHPN,NP-C

Sex Female

Practice address 10980 Grantchester Way, Columbia, MD, 21044

Phone (202) 451-6882

Fax (443) 537-9913

Enumeration date Oct 1, 2013

Last updated in NPPES Feb 27, 2025

Taxonomy & licenses

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 18021 (TN) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 18021 (TN) Primary

DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Christine Hallman?

Christine Hallman is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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James Houston Pain Medicine (Anesthesiology) Physician · Columbia, MD NPI 1003820119 Joel Mcalduff Internal Medicine Physician · Columbia, MD NPI 1912013186 Antoinette Newman Hospice and Palliative Medicine (Internal Medicine) Physician · Columbia, MD NPI 1902338569 Gemina Gena Cardiac Rehabilitation Registered Nurse · Columbia, MD NPI 1538632211 Chastity Scarlett Acute Care Nurse Practitioner · Columbia, MD NPI 1881309185 Michelle Poon Family Nurse Practitioner · Columbia, MD NPI 1427907252 Taylor Field Physician Assistant · Columbia, MD NPI 1104759844

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-27.