Doctor profile · Federal record
Dr. Nathan Grunwald, MD
Family Medicine Physician (CMS: Family Practice) · Menasha, WI
- NPI 1073549887
- Accepts Medicare
- 23 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2005 Midway RD
Menasha, WI 549527002
(920) 832-8500 - Mailing address
-
Po Box 8003
Appleton, WI 549128003
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- March 13, 2012
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Wisconsin #47609-020
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1073549887. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,211
Distinct HCPCS
10
Medicare allowed
$55,020
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
36415 |
Insertion of needle into vein for collection of blood sample | 254 | 122 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 227 | 117 | $119 | |
80061 |
Blood test, lipids (cholesterol and triglycerides) | 140 | 92 | $13 | |
80048 |
Blood test, basic group of blood chemicals (calcium, total) | 112 | 80 | $8 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 78 | 78 | $122 | |
83036 |
Hemoglobin a1c level | 44 | 29 | $10 | |
82947 |
Blood glucose (sugar) level | 41 | 35 | $4 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 39 | 30 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 36 | 28 | $82 | |
82565 |
Blood creatinine level | 33 | 29 | $5 |
In context: peer comparison
Among 7 peers in Menasha Family Medicine Physician, average services per provider: 56. This provider delivers 22× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
3,356
Patients
943
Total drug cost
$51,464
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 741 | 200 | $10,876 |
| Amlodipine Besylate | Generic | 447 | 128 | $4,237 |
| Lisinopril | Generic | 258 | 74 | $2,446 |
| Losartan Potassium | Generic | 242 | 71 | $3,586 |
| Omeprazole | Generic | 238 | 68 | $4,303 |
| Metoprolol Succinate | Generic | 231 | 60 | $4,769 |
| Levothyroxine Sodium | Generic | 225 | 52 | $3,883 |
| Hydrochlorothiazide | Generic | 161 | 42 | $813 |
| Simvastatin | Generic | 154 | 45 | $1,901 |
| Metformin Hcl | Generic | 149 | 40 | $2,076 |
Hospital affiliations
Frequently asked questions
What is Dr. Nathan Grunwald's medical specialty?
Dr. Nathan Grunwald practices Family Medicine Physician in Menasha, WI.
Where does Dr. Nathan Grunwald practice?
Dr. Nathan Grunwald practices at 2005 Midway RD, Menasha, WI 549527002. Office phone: 9208328500.
What is Dr. Nathan Grunwald's NPI?
Dr. Nathan Grunwald's National Provider Identifier (NPI) is 1073549887, issued by NPPES.
Does Dr. Nathan Grunwald accept Medicare assignment?
Yes. Dr. Nathan Grunwald accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathan Grunwald commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Blood test, lipids (cholesterol and triglycerides) (HCPCS 80061). Source: CMS Medicare Physician & Other Practitioners file.