Alexa Fleckenstein, M.D.
NPI 1689806283 · Internal Medicine Physician · Brookline, MA
Alexa Fleckenstein, M.D. is a Internal Medicine Physician provider in Brookline, MA (NPI 1689806283).
Provider details
- NPI number
- 1689806283
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 70436 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
100% 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
Mailing address
Registry dates
- Enumerated
- 2009-08-14
- Last updated
- 2009-08-14
Frequently asked questions
- What is Alexa Fleckenstein's NPI number?
- Alexa Fleckenstein's National Provider Identifier (NPI) is 1689806283, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexa Fleckenstein's specialty?
- Alexa Fleckenstein is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alexa Fleckenstein located?
- Alexa Fleckenstein's practice location on file with NPPES is 111 Seaver St, Brookline, MA 02445-5753.
- What is Alexa Fleckenstein's phone number?
- The practice phone number listed in the NPPES registry for Alexa Fleckenstein is (617) 834-9700.
- Is Alexa Fleckenstein's NPI active?
- Yes — Alexa Fleckenstein's NPI (1689806283) is active in the NPPES registry as of the last update on 2009-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.