MR. MICHAEL LOUIS HAVENAR ACNP
NPI 1770723082
Nurse Practitioner - Acute Care in Saint Louis, MO

Active since February 26, 2009PECOS EnrolledAccepts Medicare Assignment
92.39/100
CMS Quality Rating
11133 DUNN RD, DEPT ANESTHESIOLOGY, SAINT LOUIS, MO 63136(800) 862-9980(314) 362-1185 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Apr 25, 2024, Apr 10, 2024, Nov 15, 2021 and 2 more (5 updates tracked since 2016).

About Mr. Michael Louis Havenar Acnp NPPES

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

MR. MICHAEL LOUIS HAVENAR ACNP (NPI 1770723082) is an individual acute care provider in Saint Louis, Missouri, licensed in Missouri (2003001555) and active in the NPI registry since February 2009. He is enrolled in Medicare PECOS, is affiliated with Memorial Hospital, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1770723082
Entity TypeIndividualMale
Primary Taxonomy363LA2100X
Provider Legal NameMR. MICHAEL LOUIS HAVENARCredential: ACNP
Location Address11133 DUNN RD, DEPT ANESTHESIOLOGYSaint Louis, MO 63136-6163
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (800) 862-9980 · Fax (314) 362-1185
Fax(314) 362-1185
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateFebruary 26, 2009
Last NPPES UpdateApril 17, 20255 updates tracked since enumeration
NPI 1770723082 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License Licensed in MO · 2003001555
11133 DUNN RD, Saint Louis, MO 63136

Other Identifiers 1

Medicaid429217300MO

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

Mr. Michael Louis Havenar Acnp 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 ID2365590544
PECOS Enrollment IDI20090427000455, I20200504002158
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
56 services35 patients
Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
55 services22 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
22 services18 patients

Hospital Affiliations CMS Care Compare 2

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

Memorial Hospital

Acute Care Hospitals · Belleville, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140185
Location4500 Memorial DriveBelleville, IL 62226 · St. Clair County
Emergency services Birthing friendly

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260032
LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63136 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

92.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality97.81
Promoting Interoperability100
Improvement Activities40
Cost70.26

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.

Anesthesiologist Assistant
11133 DUNN RD
SAINT LOUIS, MO 63136
Radiology (Diagnostic Radiology)
11133 DUNN RD, DEPT RADIOLOGY
SAINT LOUIS, MO 63136
Internal Medicine (Critical Care Medicine)
11133 DUNN RD
SAINT LOUIS, MO 63136
Pathology (Anatomic Pathology)
11133 DUNN RD, DEPT. OF PATHOLOGY
SAINT LOUIS, MO 63136
Nurse Practitioner (Family)
11133 DUNN RD, SUITE 2335
SAINT LOUIS, MO 63136
Emergency Medicine
11133 DUNN RD, DEPT EMERGENCY MED
SAINT LOUIS, MO 63136
Nurse Practitioner
11133 DUNN RD, DEPT EMERGENCY MED
SAINT LOUIS, MO 63136
Psychiatric Unit
11133 DUNN RD
SAINT LOUIS, MO 63136

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 Michael Havenar's NPI number?

The NPI number for Michael Havenar is 1770723082. It was assigned to this individual provider in the NPPES registry on February 26, 2009.

Where is Michael Havenar located?

Michael Havenar practices at 11133 Dunn Rd Dept Anesthesiology, Saint Louis, MO 63136. The listed phone number is (800) 862-9980.

What is Michael Havenar's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Michael Havenar enrolled in Medicare?

Yes. Michael Havenar 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 Michael Havenar affiliated with any hospitals?

According to CMS data, Michael Havenar is affiliated with Memorial Hospital and Barnes Jewish Hospital.

When was this NPI record last updated?

The NPPES record for Michael Havenar was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.