Doctor profile · Federal record
Dr. Sean Massa, MD
Otolaryngology Physician (CMS: Otolaryngology) · Saint Louis, MO
- NPI 1336586809
- Accepts Medicare
- MIPS 79.1 / 100 · 2023
- 13 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1225 S Grand, Door 3
Saint Louis, MO 63104
(314) 977-5110
fax (314) 977-7686 - Mailing address
-
1008 S Spring Ave # 3300
Saint Louis, MO 631102520
Credentials & registration
- NPI registered
- May 2013 — 13 yrs on file
- Profile last updated
- March 5, 2021
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207Y00000X — NUCC code
- State license (1)
- Missouri #2018008049
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1336586809. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
179
Distinct HCPCS
7
Medicare allowed
$16,355
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 41 | 33 | $63 | |
31575 |
Diagnostic exam of voice box using a flexible endoscope | 32 | 23 | $66 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 27 | 25 | $89 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 26 | 22 | $96 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 21 | 18 | $125 | |
31575 |
Diagnostic exam of voice box using a flexible endoscope | 19 | 17 | $128 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 13 | 13 | $131 |
In context: peer comparison
Among 17 peers in Saint Louis Otolaryngology Physician, average services per provider: 86. This provider delivers 2.1× the peer median.Open Payments
Industry payments received
All-time total
$81
Transactions
3
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Intuitive Surgical, INC. | 1 | $41.19 | |
| Ethicon US, LLC | 1 | $24.44 | |
| Karl Storz Endoscopy-America | 1 | $15.50 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Sean Massa's medical specialty?
Dr. Sean Massa practices Otolaryngology Physician in Saint Louis, MO.
Where does Dr. Sean Massa practice?
Dr. Sean Massa practices at 1225 S Grand, Saint Louis, MO 63104. Office phone: 3149775110.
What is Dr. Sean Massa's NPI?
Dr. Sean Massa's National Provider Identifier (NPI) is 1336586809, issued by NPPES.
Does Dr. Sean Massa accept Medicare assignment?
Yes. Dr. Sean Massa accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sean Massa commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Diagnostic exam of voice box using a flexible endoscope (HCPCS 31575); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.