Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Maria Cristina Ramirez Hubbard, M.D.

Behavioral Neurology & Neuropsychiatry Physician in Key Biscayne, FL · enumerated 2006.

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

National Provider Identifier

1598735805

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Registry record

Entity type Individual (Type 1)

Name Dr. Maria Cristina Ramirez Hubbard

Credential M.D.

Sex Female

Practice address 951 Crandon Blvd Unit 491554, Key Biscayne, FL, 33149

Phone (281) 529-5912

Enumeration date Jan 26, 2006

Last updated in NPPES Jul 14, 2020

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License ME128569 (FL) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License J4979 (TX) Secondary

2084P0301X Brain Injury Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License ME128569 (FL) Secondary

2084B0040X Behavioral Neurology & Neuropsychiatry Physician Allopathic & Osteopathic Physicians · License ME128569 (FL) Primary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 17993 (PR) Secondary

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
10021573	Other	TX	AMERIGROUP CORP.
4540550001	Other	TX	SUPPLIER ID NUMBER W/ GBA
5909112	Other	TX	AETNA
10596334	Other	TX	GREAT WEST INS.
128501701	Medicaid	TX	-
130019740	Other	TX	RAILROAD MEDICARE
82870S	Other	TX	BLUE CROSS & BLUE SHIELDS

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 NPI 1598735805 active?

Yes, as of the latest NPPES snapshot, NPI 1598735805 is active (record last updated 2020-07-14).

How do I verify Maria Hubbard's NPI record?

Cross-check NPI 1598735805 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-14.