Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Alden Ryley, M.D.

Reproductive Endocrinology Physician in Brookline, MA · enumerated 2006.

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

National Provider Identifier

1124065412

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. David Alden Ryley

Credential M.D.

Sex Male

Practice address 1 Brookline Pl Ste 302, Boston Ivf - the Boston Center, Brookline, MA, 02445

Phone (617) 735-9000

Fax (617) 738-8993

Enumeration date Jun 2, 2006

Last updated in NPPES Aug 31, 2009

Taxonomy & licenses

207VE0102X Reproductive Endocrinology Physician Allopathic & Osteopathic Physicians · License 60014 (MA) Primary

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 60014 (MA) 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
0197041	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

How do I verify David Ryley's NPI record?

Cross-check NPI 1124065412 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1124065412 active?

Yes, as of the latest NPPES snapshot, NPI 1124065412 is active (record last updated 2009-08-31).

Other providers at this practice address

Browse all →

Steven Bayer Reproductive Endocrinology Physician · Brookline, MA NPI 1154375038 Selwyn Oskowitz Reproductive Endocrinology Physician · Brookline, MA NPI 1235176868

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-08-31.