Doctor profile · Federal record
Dr. Amy Maass, APNP
Nurse Practitioner · Family Nurse Practitioner · Neenah, WI
- NPI 1659857977
- Accepts Medicare
- MIPS 94.4 / 100 · 2023
- 8 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
130 2Nd St
Neenah, WI 549562883
(920) 729-2933
fax (920) 727-4511 - Additional location
-
1616 N Casaloma Dr Suite 100
Appleton, WI 549138245
(920) 204-6758 - Additional location
-
2595 Development Dr Suite 150
GreenBay, WI 543114288
(920) 204-6758 - Mailing address
-
3 Neenah Ctr
Neenah, WI 549563070
Credentials & registration
- NPI registered
- July 2018 — 8 yrs on file
- Profile last updated
- January 29, 2026
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 363L00000X — NUCC code
- State license (1)
- Wisconsin #8660-33
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659857977. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
411
Distinct HCPCS
4
Medicare allowed
$30,834
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 195 | 51 | $72 | |
80307 |
Testing for presence of drug, by chemistry analyzers | 92 | 46 | $60 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 79 | 41 | $102 | |
62370 |
Electronic analysis reprogramming and refill of spinal canal drug infusion pump by physician | 45 | 19 | $73 |
In context: peer comparison
Among 20 peers in this city , average services per provider: 290. This provider delivers 1.4× the peer median.Open Payments
Industry payments received
All-time total
$510
Transactions
21
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Nevro Corp. | 11 | $222.67 | |
| Spinal Simplicity, LLC | 4 | $169.91 | |
| Collegium Pharmaceutical, Inc. | 5 | $98.77 | |
| Nalu Medical, Inc. | 1 | $18.98 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,542
Patients
248
Total drug cost
$110,925
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 320 | 47 | $8,109 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 192 | 29 | $5,327 |
| Tizanidine Hcl | Generic | 189 | 34 | $3,007 |
| Gabapentin | Generic | 156 | 29 | $5,909 |
| Pregabalin | Generic | 131 | 30 | $6,534 |
| Buprenorphine | Generic | 85 | 17 | $31,319 |
| Diclofenac Sodium | Generic | 74 | 24 | $2,710 |
| Morphine Sulfate Er (Morphine Sulfate) | Brand | 60 | 0 | $7,273 |
| Oxycodone Hcl | Generic | 54 | 0 | $1,256 |
| Duloxetine Hcl | Generic | 52 | 11 | $889 |
Frequently asked questions
What is Dr. Amy Maass's medical specialty?
Dr. Amy Maass practices Nurse Practitioner in Neenah, WI.
Where does Dr. Amy Maass practice?
Dr. Amy Maass practices at 130 2Nd St, Neenah, WI 549562883. Office phone: 9207292933.
What is Dr. Amy Maass's NPI?
Dr. Amy Maass's National Provider Identifier (NPI) is 1659857977, issued by NPPES.
Does Dr. Amy Maass accept Medicare assignment?
Yes. Dr. Amy Maass accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Amy Maass commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Testing for presence of drug, by chemistry analyzers (HCPCS 80307); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.