John Markley, MD
NPI 1922389931 · Anesthesiology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Markley, MD is a Anesthesiology Physician provider in Boston, MA (NPI 1922389931).
Provider details
- NPI number
- 1922389931
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
Mailing address
Registry dates
- Enumerated
- 2011-09-02
- Last updated
- 2014-07-21
Frequently asked questions
- What is John Markley's NPI number?
- John Markley's National Provider Identifier (NPI) is 1922389931, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Markley's specialty?
- John Markley is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Markley located?
- John Markley's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is John Markley's phone number?
- The practice phone number listed in the NPPES registry for John Markley is (617) 732-8210.
- Does John Markley accept Medicare?
- John Markley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Markley's NPI active?
- Yes — John Markley's NPI (1922389931) is active in the NPPES registry as of the last update on 2014-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.