What is Ashley Greiner's NPI number?

Ashley Greiner's National Provider Identifier (NPI) is 1528383221, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Ashley Greiner's specialty?

Ashley Greiner is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Ashley Greiner located?

Ashley Greiner's practice location on file with NPPES is 330 Brookline Ave, Boston, MA 02215-5400.

What is Ashley Greiner's phone number?

The practice phone number listed in the NPPES registry for Ashley Greiner is (617) 667-7000.

Is Ashley Greiner's NPI active?

Yes — Ashley Greiner's NPI (1528383221) is active in the NPPES registry as of the last update on 2026-05-11.

IndividualActive

Ashley Greiner, M.D., M.P.H.

NPI 1528383221 · Emergency Medicine Physician · Boston, MA

Ashley Greiner, M.D., M.P.H. is a Emergency Medicine Physician provider in Boston, MA (NPI 1528383221).

Provider details

NPI number: 1528383221
Entity type: Individual
Primary specialty: Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D., M.P.H.
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

Emergency Medicine PhysicianPrimary207P00000X
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(77/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
16 yrs in NPPES registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

330 Brookline Ave

Boston, MA 02215-5400

Phone: (617) 667-7000

Street-level locationGet directions

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Mailing address