Glenn Markenson MD
About this NPIWhat this record shows.
NPI 1710999578 is registered to Glenn Markenson MD, a Maternal & Fetal Medicine practising at 850 Harrison Ave, Yacc 4 in Boston, Massachusetts. Maternal & Fetal Medicine is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Glenn Markenson MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Beyond the registryWhat this record adds.
This record carries 1 secondary identifier beyond the base NPI: Medicaid and other payer cross-references used by billers and credentialers, which the standard CMS NPPES lookup does not surface. It is enrolled in Medicare, linking to 1 PECOS enrollment record (with a public Medicare Enrollment ID) sourced from CMS, which the NPPES registry does not list. Within the directory it is one of 101 Maternal & Fetal Medicine providers on file in Massachusetts.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Medicaid
Source: NPPES public registry.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20100106000157Obstetrics/GynecologyMA
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Glenn Markenson MD accepts. To confirm in-network status with your specific health plan, contact Glenn Markenson MD directly at (617) 414-2000.
Frequently asked
Yes. NPI 1710999578 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Maternal & Fetal Medicine is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (617) 414-2000.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Glenn Markenson MD is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 101 Maternal & Fetal Medicine providers are registered in Massachusetts, and Glenn Markenson MD is one of them. The figure refreshes each month from the federal source.