Doctor profile · Federal record
Dr. Katherine Massa, MD
Maternal & Fetal Medicine Physician (CMS: Obstetrics/Gynecology) · Saint Louis, MO
- NPI 1205272341
- Accepts Medicare
- MIPS 79.3 / 100 · 2023
- 13 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4901 Forest Park Ave, Div OBGYN Mfm and US, Ste 710
Saint Louis, MO 631081495
(314) 454-8181
fax (314) 747-1429 - Mailing address
-
Po Box 7412011
Chicago, IL 606742011
Credentials & registration
- NPI registered
- May 2013 — 13 yrs on file
- Profile last updated
- April 17, 2025
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207VM0101X — NUCC code
- State license (1)
- Missouri #2017013416
- Medicaid
- MO #200029660
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1205272341. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
79
Distinct HCPCS
2
Medicare allowed
$2,610
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
76830 |
Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina | 40 | 40 | $33 | |
76856 |
Complete ultrasound scan of pelvis | 39 | 39 | $33 |
In context: peer comparison
Among 2 peers in Saint Louis Maternal & Fetal Medicine Physician, average services per provider: 37. This provider delivers 2.1× the peer median.Open Payments
Industry payments received
All-time total
$19
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Merck Sharp & Dohme LLC | 1 | $18.98 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Katherine Massa's medical specialty?
Dr. Katherine Massa practices Maternal & Fetal Medicine Physician in Saint Louis, MO.
Where does Dr. Katherine Massa practice?
Dr. Katherine Massa practices at 4901 Forest Park Ave, Saint Louis, MO 631081495. Office phone: 3144548181.
What is Dr. Katherine Massa's NPI?
Dr. Katherine Massa's National Provider Identifier (NPI) is 1205272341, issued by NPPES.
Does Dr. Katherine Massa accept Medicare assignment?
Yes. Dr. Katherine Massa accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Massa commonly perform?
Top Medicare-reported procedures in 2023: Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina (HCPCS 76830); Complete ultrasound scan of pelvis (HCPCS 76856). Source: CMS Medicare Physician & Other Practitioners file.