Physician Profile
Leslie S. Massad, MD
Unclaimed ProfileAbout Dr. Massad
Leslie S. Massad, MD is a healthcare provider in Saint Louis, MO specializing in gynecologic oncology. Leslie trained at Duke University School of Medicine, graduating in 1984. According to Medicare claims data, Leslie cared for 90 Medicare patients across 140 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (314) 362-3181
- Email not available
Practice Locations
4921 PARKVIEW PL DIV OBGYN GYNECOLOGIC ONCOLOGY, STE 13C
Saint Louis, MO 63110
Procedures Most Often Billed to Medicare
140 services · 90 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
70 | More often than most peers in Gynecologic Oncology |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
34 | As often as other peers in Gynecologic Oncology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
22 | Less often than most peers in Gynecologic Oncology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
14 | Less often than most peers in Gynecologic Oncology |
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 gynecologic oncology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
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.
Other gynecologic oncology specialists in Saint Louis 7
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Duke University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1984 at Duke University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Massad specialize in?
Dr. Massad is a gynecologic oncology in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Massad located?
Dr. Massad is listed at 4921 Parkview Pl Div Obgyn Gynecologic Oncology, Ste 13C, Saint Louis, MO 63110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Massad's phone number?
The number on file is (314) 362-3181. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Massad's NPI number?
Dr. Massad's National Provider Identifier is 1366423360. 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
Where did Dr. Massad go to medical school?
Dr. Massad attended Duke University School of Medicine, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Massad been practicing?
Dr. Massad has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Massad do most often?
According to Medicare billing data, Dr. Massad 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. Massad confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Massad. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.