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DR. CHARLOTTE A MAO MD, MPH
NPI 1487755229
Pediatrics - Pediatric Infectious Diseases in Boston, MA

Active since September 26, 2006PECOS Enrolled
300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6832(617) 730-0911 Get Directions Write a Review

NPPES record last updated: August 14, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Charlotte A Mao Md, Mph NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CHARLOTTE A MAO MD, MPH (NPI 1487755229) is an individual pediatric infectious diseases provider in Boston, Massachusetts, licensed in Massachusetts (77816) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1487755229
Entity TypeIndividualFemale
Primary Taxonomy2080P0208X
Provider Legal NameDR. CHARLOTTE A MAOCredential: MD, MPH
Location Address300 LONGWOOD AVEBoston, MA 02115-5724
Mailing Address300 Longwood AveBoston, MA 02115-5724 · (617) 355-6832 · Fax (617) 730-0911
Phone(617) 355-6832
Fax(617) 730-0911
Sole ProprietorNo
Enumeration DateSeptember 26, 2006
Last NPPES UpdateAugust 14, 2007
✔ NPI 1487755229 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Infectious DiseasesAllopathic & Osteopathic Physicians
Taxonomy Code2080P0208X
License✔ Licensed in MA · 77816
Definition
A pediatrician trained to care for children in the diagnosis, treatment and prevention of infectious diseases. This specialist can apply specific knowledge to affect a better outcome for pediatric infections with complicated courses, underlying diseases that predispose to unusual or severe infections, unclear diagnoses, uncommon diseases and complex or investigational treatments.
300 LONGWOOD AVE, Boston, MA 02115
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Other Identifiers 3

Medicaid3157320MA
Medicare UPING37636
Medicare ID-Type UnspecifiedA21864

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Charlotte A Mao Md, Mph is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Charlotte Mao reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The General Hospital Corporation
2.6 mi
General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
NPI 1023049236 (617) 726-2000
Massachusetts General Physicians Organization Inc
2.6 mi
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group
NPI 1801874573 (617) 724-0287

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JULIE ANN HANSEN LCSW
Social Worker (Clinical)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (857) 218-4309
MS. ANNA ROGLIERI
Nurse Practitioner (Psychiatric/Mental Health)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
STEPHEN G. FLYNN M.D.
Anesthesiology (Pediatric Anesthesiology)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
MRS. LAUREN ASHLEY SHARIS P.T., D.P.T
Physical Therapist
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-7216
MS. SOYUN KWAN LICSW
Social Worker (Clinical)
300 LONGWOOD AVE, CHILDREN'S HOSPITAL BOSTON
BOSTON, MA 02115
Suffolk County (617) 355-0567
PUJA BANKA M.D.
Pediatrics
300 LONGWOOD AVE, BADER 203
BOSTON, MA 02115
Suffolk County (617) 355-6363
MR. COURTNEY SULLIVAN FRATTO CPNP
Nurse Practitioner (Pediatrics)
300 LONGWOOD AVE, HUNNEWELL BUILDING 322
BOSTON, MA 02115
Suffolk County (857) 218-4085
DR. ELIZABETH S TAGLAUER M.D., PH.D.
Pediatrics (Neonatal-Perinatal Medicine)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Charlotte Mao's NPI number?

The NPI number for Charlotte Mao is 1487755229. It was assigned to this individual provider in the NPPES registry on September 26, 2006.

Where is Charlotte Mao located?

Charlotte Mao practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6832.

What is Charlotte Mao's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.

Is Charlotte Mao enrolled in Medicare?

Yes. Charlotte Mao is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Charlotte Mao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charlotte Mao reassigns Medicare benefits to 2 organizations: The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization Inc (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Charlotte Mao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Charlotte Mao was last updated on August 14, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.