Glenn Markenson, MD
NPI 1710999578 · Maternal & Fetal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Glenn Markenson, MD is a Maternal & Fetal Medicine Physician provider in Boston, MA (NPI 1710999578).
Provider details
- NPI number
- 1710999578
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 153868 (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
19 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
- 2006-08-12
- Last updated
- 2015-11-16
Frequently asked questions
- What is Glenn Markenson's NPI number?
- Glenn Markenson's National Provider Identifier (NPI) is 1710999578, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Glenn Markenson's specialty?
- Glenn Markenson is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Glenn Markenson located?
- Glenn Markenson's practice location on file with NPPES is 850 Harrison Ave, Boston, MA 02118-4001.
- What is Glenn Markenson's phone number?
- The practice phone number listed in the NPPES registry for Glenn Markenson is (617) 414-2000.
- Does Glenn Markenson accept Medicare?
- Glenn Markenson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Glenn Markenson's NPI active?
- Yes — Glenn Markenson's NPI (1710999578) is active in the NPPES registry as of the last update on 2015-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.