Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maria Milagros Negron Alvarez, MD

Internal Medicine Physician in Spartanburg, SC · enumerated 2007 · practices at Centerwell Senior Primary Care (Sc) PC.

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

National Provider Identifier

1639363914

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Maria Milagros Negron Alvarez

Credential MD

Sex Female

Practice address 1855 E Main St Ste 21a, Spartanburg, SC, 29307

Phone (864) 913-4370

Fax (833) 994-1103

Enumeration date Aug 30, 2007

Last updated in NPPES Mar 31, 2026

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 35261 (SC) 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
SC03605019	Other	SC	MEDICARE PIN
352610	Medicaid	SC	-

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

What specialty is Maria Negron Alvarez?

Maria Negron Alvarez is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

Browse all →

Stephanie Phillips Family Medicine Physician · Spartanburg, SC NPI 1861460883 Erica Savage-Jeter Family Medicine Physician · Spartanburg, SC NPI 1275657694 Faustina Evans Family Nurse Practitioner · Spartanburg, SC NPI 1285181990 Cynthia Harris Family Nurse Practitioner · Spartanburg, SC NPI 1275046146 Centerwell Senior Primary Care (Sc) PC Internal Medicine Physician · Spartanburg, SC NPI 1154974343 Amelia Callicutt Family Nurse Practitioner · Spartanburg, SC NPI 1518557156

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-31.