Doctor profile · Federal record
Dr. Holly Maas, LMSW
Clinical Social Worker · Social Worker · Iowa City, IA
- NPI 1033159660
- Accepts Medicare
- 24 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
200 Hawkins Dr
Iowa City, IA 522421009
(319) 353-6314
fax (319) 353-7788
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- February 9, 2011
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 1041C0700X — NUCC code
- State license (1)
- Iowa #06176
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1033159660. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
168
Distinct HCPCS
2
Medicare allowed
$12,355
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90834 |
Psychotherapy, 45 minutes | 112 | 14 | $64 | |
90837 |
Psychotherapy, 1 hour | 56 | 16 | $94 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 129. This provider delivers 1.3× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Holly Maas's medical specialty?
Dr. Holly Maas practices Clinical Social Worker in Iowa City, IA.
Where does Dr. Holly Maas practice?
Dr. Holly Maas practices at 200 Hawkins Dr, Iowa City, IA 522421009. Office phone: 3193536314.
What is Dr. Holly Maas's NPI?
Dr. Holly Maas's National Provider Identifier (NPI) is 1033159660, issued by NPPES.
Does Dr. Holly Maas accept Medicare assignment?
Yes. Dr. Holly Maas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Holly Maas commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90834); Psychotherapy (HCPCS 90837). Source: CMS Medicare Physician & Other Practitioners file.