National Provider Identifier Database

WILLIAM K GRETZINGER, DO – NPI #1518994979
Emergency Medical Services


Contact Information

WILLIAM K GRETZINGER, DO
416 CONNABLE AVE
ER DEPARTMENT
PETOSKEY, MI49770
Phone: 231-487-4000
Fax:
Website:
Specialty Taxonomy Code
* Emergency Medical Services 207PE0004X
Anesthesiology 207L00000X

* Indicates primary specialty

NPI Profile & details for WILLIAM K GRETZINGER

NPI Number 1518994979
Credentials DO (Doctor of Osteopathic)
Entity Individual
Enumeration date 06/28/2006
Last updated 10/09/2019 - About 7 years ago
Sole proprietor1 No
Identifiers
  • MI License #: 5101011330
  • MI License #: WG011330
  • MI Medicaid: 114081517
Hospital affiliation n/a

1 A sole proprietor/sole proprietorship is an individual, and as such, is eligible for a single NPI number. The sole proprietor must apply for the NPI number using his or her own Social Security Number (SSN), not an Employer Identification Number (EIN) even if he/she has an EIN.

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