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Edit this profileAt a glance
- 909 Walnut St Rm 300, Philadelphia, PA 19107
About Dr. Masi
John H. Masi, DMD practices oral & maxillofacial surgery (dental) in Philadelphia, PA. According to Medicare claims data, the services billed most often include new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more. The provider's National Provider Identifier (NPI) is 1437686862.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (215) 503-7118
- Email not available
Practice Locations
909 WALNUT ST RM 300
Philadelphia, PA 19107
Conditions Commonly Evaluated or Treated
Within Oral and Maxillofacial Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Complications
Dental Emergencies
Infections
Injury
Jaw & Bite
- Dislocated Jaw
- Severe Jaw Bone Loss
- Advanced gum disease
- Jaw Clicking Or Popping
- Locked Jaw
- Overbite
- Overbite Or Underbite
- Protruding Lower Jaw
- Teeth grinding and clenching
- Temporomandibular joint disorder
- Underbite
Oral Pathology
- Exposed Jaw Bone
- Mouth Lump or Bump
- Mouth Sores That Won't Heal
- Bony Bumps in Mouth
- Jaw Cyst
- Leukoplakia
- Oral cancer
Precancerous
Salivary Glands
Most searched conditions
Congenital & Pediatric
Facial Structure
General
Infection
Nerve Disorders
Pain
Sleep & Airway
Tumors & Cysts
Procedures & services
Cosmetic
Emergency
Emergency Care
Extractions
Injury
Jaw & Bite
Oral surgery
Pathology
Reconstructive
Salivary Glands
- Ranula or Mucocele Removal
- Submandibular gland removal
- Salivary Duct Stone Removal
Sedation & Anesthesia
Surgical Orthodontics
TMJ & Jaw
- Masseter Botox for Clenching
- Night Guard Fitting
- TMJ Arthroscopy
- TMJ Injections
- TMJ Replacement Surgery
- Trigger Point Injections
Tooth replacement
Tumors & Cysts
Most searched procedures
Cosmetic & Facial
- Buccal Fat Removal
- Cheek Implants
- Chin Implant
- Scar revision surgery
Dental Emergencies
Dental implants
Infections
- Drainage of a dental abscess
- Dry Socket Treatment
Pediatric & Soft Tissue
- Lip tie release
- Tongue-Tie Release
Reconstruction
- Cleft Lip Repair
- Cleft Palate Repair
- Jaw-ridge smoothing
- Nerve Repair Surgery
- Sinus Lift
Salivary gland
Sleep & Airway
Tooth preservation
Procedures Most Often Billed to Medicare
17 services · 17 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
17 | As often as other peers in Oral & Maxillofacial Surgery… |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other oral & maxillofacial surgery specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 6
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 23 related providers in 3 groups
Other oral & maxillofacial surgery specialists in Philadelphia 7
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2017 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Masi's specialty?
Dr. Masi is an oral & maxillofacial surgery (dental) in Philadelphia, PA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Masi?
Dr. Masi is listed at 909 Walnut St Rm 300, Philadelphia, PA 19107. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Masi?
The number on file is (215) 503-7118. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Masi's NPI number?
Dr. Masi's National Provider Identifier is 1437686862. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Masi's medical education?
Dr. Masi attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Masi been practicing?
Dr. Masi has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Masi known for?
According to Medicare billing data, Dr. Masi the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Masi confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Masi. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.