Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Obstetrics/Gynecology

Charissa J. Pettyjohn, MD

Works at hospitals in Boston, MA · Massachusetts

Summary

Charissa J. Pettyjohn, MD (Obstetrics/Gynecology) is listed by Medicare at 1 hospital in Boston, MA. NPI 1861614711. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Charissa J. Pettyjohn, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Obstetrics/GynecologyPrimary specialty
YesAccepts Medicare assignment
21Years since medical school (graduated 2005)
Medical College Of WisconsinMedical school
FemaleGender (as listed)
Commonwealth Ob-Gyn, PCGroup practice

Quick answers

Which hospitals does Charissa J. Pettyjohn work at?
Medicare's official clinician data lists Charissa J. Pettyjohn at 1 hospital: Brigham and Women's Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Charissa J. Pettyjohn see patients?
Medicare's clinician data lists 1 practice location in Brookline, MA. Call before your visit to confirm the address.
What is Charissa J. Pettyjohn's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Charissa J. Pettyjohn accept Medicare assignment?
Yes. Medicare's clinician data says Charissa J. Pettyjohn accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Charissa J. Pettyjohn?
(617) 732-1510, as listed in official Medicare / NPI Registry data.
What is Charissa J. Pettyjohn's NPI number?
1861614711. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Charissa J. Pettyjohn works

Medicare's Facility Affiliation Data lists Charissa J. Pettyjohn at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Charissa J. Pettyjohn is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Charissa J. Pettyjohn as a member of this group (CMS data updated 2026-10-02).

  • Commonwealth Ob-Gyn, PC6 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Massachusetts →

Other OB-GYNs in Brookline

Clinicians with the same Medicare primary specialty in Brookline, MA — not a recommendation.

All OB-GYNs in Brookline →

Clinician information

CredentialMD
Medical schoolMedical College Of Wisconsin
Graduation year2005
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1861614711
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians