Doctor profile · Federal record
Dr. Catherine Ersig, CRNA
Certified Registered Nurse Anesthetist (CMS: Certified Registered Nurse Anesthetist (CRNA)) · Saginaw, MI
- NPI 1215232863
- Accepts Medicare
- 16 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1447 N Harrison St
Saginaw, MI 486024727
(989) 583-6237
fax (989) 583-6032 - Additional location
-
44405 Woodward Ave
Pontiac, MI 483415023
(248) 858-3000
Credentials & registration
- NPI registered
- January 2011 — 15 yrs on file
- Profile last updated
- August 16, 2023
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 367500000X — NUCC code
- State license (1)
- Michigan #4704251530
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215232863. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
32
Distinct HCPCS
2
Medicare allowed
$3,265
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
00142 |
Anesthesia for lens surgery | 17 | 17 | $111 | |
00731 |
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 15 | 15 | $91 |
In context: peer comparison
Among 27 peers in Saginaw Certified Registered Nurse Anesthetist, average services per provider: 31. This provider delivers 1.0× the peer median.Open Payments
Industry payments received
All-time total
$185
Transactions
10
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Regeneron Healthcare Solutions, INC. | 3 | $53.89 | |
| Merck Sharp & Dohme LLC | 2 | $39.29 | |
| Janssen Biotech, INC. | 2 | $31.88 | |
| Ironwood Pharmaceuticals, INC | 1 | $22.87 | |
| Takeda Pharmaceuticals U.S.A., INC. | 1 | $19.52 | |
| Intercept Pharmaceuticals, INC. | 1 | $17.33 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Catherine Ersig's medical specialty?
Dr. Catherine Ersig practices Certified Registered Nurse Anesthetist in Saginaw, MI.
Where does Dr. Catherine Ersig practice?
Dr. Catherine Ersig practices at 1447 N Harrison St, Saginaw, MI 486024727. Office phone: 9895836237.
What is Dr. Catherine Ersig's NPI?
Dr. Catherine Ersig's National Provider Identifier (NPI) is 1215232863, issued by NPPES.
Does Dr. Catherine Ersig accept Medicare assignment?
Yes. Dr. Catherine Ersig accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Catherine Ersig commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for lens surgery (HCPCS 00142); Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731). Source: CMS Medicare Physician & Other Practitioners file.