Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joy Arm, N.P.

Adult Health Nurse Practitioner in Jamaica Plain, MA · enumerated 2006 · practices at Urban Medical Group.

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

National Provider Identifier

1356363329

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Registry record

Entity type Individual (Type 1)

Name Joy Arm

Credential N.P.

Sex Female

Practice address 545a Centre St, Jamaica Plain, MA, 02130

Phone (617) 522-5464

Fax (617) 524-2966

Enumeration date Jul 25, 2006

Last updated in NPPES Jul 17, 2007

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 212401 (MA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
0703672	Medicaid	MA	-

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 Joy Arm?

Joy Arm is registered in NPPES with the primary taxonomy of Adult Health 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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Roger Mark Internal Medicine Physician · Jamaica Plain, MA NPI 1326037219 Fadi Badlissi Rheumatology Physician · Jamaica Plain, MA NPI 1134118714 Yana Antonellis Nurse Practitioner · Jamaica Plain, MA NPI 1497744981 Anne Valeri Gerontology Nurse Practitioner · Jamaica Plain, MA NPI 1326038225 Kimberly Ocallaghan Internal Medicine Physician · Jamaica Plain, MA NPI 1881660561 Urban Medical Group Internal Medicine Physician · Jamaica Plain, MA NPI 1275578809 Geraldine Zagarella Internal Medicine Physician · Jamaica Plain, MA NPI 1255356242 John Jainchill Internal Medicine Physician · Jamaica Plain, MA NPI 1831118272

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-17.