Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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John Henry Masi, DMD

Individual provider Oral and Maxillofacial Surgery (Dentist) · NPI 1437686862

John Henry Masi, DMD is a Dentist in Philadelphia, Pennsylvania. Qualified in 2017, 9 years ago. Practices with Optimum Oral Surgery Group LLC, a 3-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
9
Licensed in
PA
In the registry since
2017
What do these letters mean?
DMD — Doctor of Dental Medicine
A dentist. Identical training and licensing to a DDS.

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Practice location Address checks out

909 Walnut St Rm 300
Philadelphia, PA 19107-5211
Phone: (215) 503-7118
Fax: (215) 923-9189
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Oral and Maxillofacial Surgery (Dentist) (primary) Taxonomy 1223S0112X · Licence DS041293 (PA)

Record details

NPI number1437686862
Entity typeIndividual (Type 1)
GenderMale
Credentials DMD
Sole proprietorNo
NPI enumeratedMay 16, 2017
Last updated in NPPESApril 3, 2021
Certification dateApril 3, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDENTIST
Also practisesMAXILLOFACIAL SURGERY
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Optimum Oral Surgery Group Llc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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