Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
R Tracy Macnab, PHD
Psychologist in Cambridge, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1730244922
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Registry record
Entity type Individual (Type 1)
Name R Tracy Macnab
Credential PHD
Sex Male
Practice address 2500 Massachusetts Ave, Cambridge, MA, 02140
Phone (617) 661-6225
Enumeration date Dec 27, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 5302059 | Other | MA | AETNA |
| W03857 | Other | MA | BCBS OF MA |
| 733061 | Other | MA | TUFTS HEALTH PLAN |
| 6191107 | Other | MA | UNITED HEALTH CARE |
| 04340308502 | Other | MA | PACIFICARE |
| 268251 | Other | MA | MAGELLAN |
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.
Frequently asked questions
How do I verify R Macnab's NPI record?
Cross-check NPI 1730244922 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1730244922 active?
Yes, as of the latest NPPES snapshot, NPI 1730244922 is active (record last updated 2007-07-08).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.