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BLAKE ALAN ALTENHOFEN
NPI 1396431557
Nurse Anesthetist, Certified Registered in Iowa City, IA

Active since April 12, 2023Accepts Medicare Assignment
200 HAWKINS DR, IOWA CITY, IA 52242(712) 260-2684 Get Directions Write a Review

NPPES record last updated: July 29, 2025. Verified against the NPPES registry weekly; last sync: September 20, 2026.

About Blake Alan Altenhofen NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BLAKE ALAN ALTENHOFEN (NPI 1396431557) is an individual nurse anesthetist, certified registered in Iowa City, Iowa, licensed in Wisconsin (17159-33) and active in the NPI registry since April 2023. He is affiliated with Ascension Columbia St Mary's Hospital Milwaukee and is a graduate of Other (2025).

NPPES Registry Identity

NPI1396431557
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameBLAKE ALAN ALTENHOFEN
Location Address200 HAWKINS DRIowa City, IA 52242-1009
Mailing Address811 E College St Apt 1-1Iowa City, IA 52240-5131 · (712) 260-2684
Phone(712) 260-2684
Sole ProprietorYes
Medical School CMSOtherGraduated 2025
Enumeration DateApril 12, 2023
Last NPPES UpdateJuly 29, 2025
NPPES CertifiedJuly 29, 2025
✔ NPI 1396431557 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
Licenses✔ Licensed in WI · 17159-33✔ Licensed in IA · 146724
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
200 HAWKINS DR, Iowa City, IA 52242
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Blake Alan Altenhofen is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5698260024
PECOS Enrollment IDI20251223000740

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension Columbia St Mary's Hospital Milwaukee

Acute Care Hospitals · Milwaukee, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520051
Location2323 N Lake DrMilwaukee, WI 53211 · Milwaukee County
Emergency services Birthing friendly

Ascension SE Wisconsin Hospital

Acute Care Hospitals · Milwaukee, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520136
Location5000 W Chambers StMilwaukee, WI 53210 · Milwaukee County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 52242 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$122.23 typical visit price
range $52.96 – $161.40
Typical copayment $30.55 (range $13.24 – $40.35)
Most-billed visit code 99204
Established Patient
$66.36 typical visit price
range $16.91 – $131.98
Typical copayment $16.59 (range $4.22 – $32.99)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SANGIL LEE M.D.
Emergency Medicine
200 HAWKINS DR
IOWA CITY, IA 52242
Johnson County (319) 356-2233
RAMI G. EL ABIAD M.D.
Internal Medicine (Gastroenterology)
200 HAWKINS DR
IOWA CITY, IA 52242
Johnson County (319) 356-4901
GRERK SUTAMTEWAGUL MD
Internal Medicine (Hematology & Oncology)
200 HAWKINS DR, DEPT OF INTERNAL MEDICINE
IOWA CITY, IA 52242
Johnson County (319) 356-1616
DR. KALEB TANNER VEIT D.O.
Internal Medicine (Critical Care Medicine)
200 HAWKINS DR
IOWA CITY, IA 52242
Johnson County (319) 356-2320
OMAR JABER M.D
Chronic Disease Hospital
200 HAWKINS DR
IOWA CITY, IA 52242
Johnson County (319) 471-8958
JENNIFER MANCUSO MS, CGC
Genetic Counselor, MS
200 HAWKINS DR, 31663 PFP
IOWA CITY, IA 52242
Johnson County (319) 384-7983
ASHLEY KAISER M.D.
Obstetrics & Gynecology
200 HAWKINS DR, DEPT OF OBGYN
IOWA CITY, IA 52242
Johnson County (319) 356-2294
MRS. NANCY JANE MILLICE
Health Educator
200 HAWKINS DR, 0733 JPP
IOWA CITY, IA 52242
Johnson County (319) 356-3825

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Blake Altenhofen's NPI number?

The NPI number for Blake Altenhofen is 1396431557. It was assigned to this individual provider in the NPPES registry on April 12, 2023.

Where is Blake Altenhofen located?

Blake Altenhofen practices at 200 Hawkins Dr, Iowa City, IA 52242. The listed phone number is (712) 260-2684.

What is Blake Altenhofen's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Blake Altenhofen enrolled in Medicare?

Yes. Blake Altenhofen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Blake Altenhofen affiliated with any hospitals?

According to CMS data, Blake Altenhofen is affiliated with Ascension Columbia St Mary's Hospital Milwaukee and Ascension SE Wisconsin Hospital.

When was this NPI record last updated?

The NPPES record for Blake Altenhofen was last updated on July 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.