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CARLA C GROGAN M.D.
NPI 1144586405
Internal Medicine in La Crosse, WI

Active since April 11, 2012PECOS EnrolledAccepts Medicare Assignment
1836 SOUTH AVE, LA CROSSE, WI 54601(608) 782-7300 Get Directions Write a Review

NPPES record last updated: June 30, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 16, 2021, Dec 17, 2020, Sep 14, 2020 and 3 more (6 updates tracked since 2018).

About Carla C Grogan M.d. NPPES

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

CARLA C GROGAN M.D. (NPI 1144586405) is an individual internal medicine provider in La Crosse, Wisconsin, licensed in Wisconsin (63237) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, is affiliated with Winona Health Services, and is a graduate of University Of Wisconsin School Of Medicine (2012).

NPPES Registry Identity

NPI1144586405
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameCARLA C GROGANCredential: M.D.
Location Address1836 SOUTH AVELa Crosse, WI 54601-5429
Mailing Address1836 South AveLa Crosse, WI 54601-5429 · (608) 782-7300
Phone(608) 782-7300
Sole ProprietorNo
Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 2012
Enumeration DateApril 11, 2012
Last NPPES UpdateJune 30, 20236 updates tracked since enumeration
NPPES CertifiedJune 30, 2023
✔ NPI 1144586405 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WI · 63237
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License 63237 (WI), ME147928 (FL)
1836 SOUTH AVE, La Crosse, WI 54601
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Other Names 1

Former Name (1)Carla Carlson Md

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Aspirus Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Carla C Grogan M.d. 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 ID3971731076
PECOS Enrollment IDI20150828001617
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.

Medicare Billing Reassignments

4

Medicare enrollment records show Carla Grogan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gundersen Lutheran Medical Center, Inc
Same address
Clinic/Center
710 DENTON ST
La Crosse, WI 54601
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,457 clinicians in this Medicare group
NPI 1619210895 (608) 782-7300
Tri-County Memorial Hospital, Inc.
39 mi
Critical Access
18601 LINCOLN ST
Whitehall, WI 54773
  • Reassigned Medicare billing, Wisconsin enrollment
  • 71 clinicians in this Medicare group
NPI 1124063573 (715) 538-4361
Mayo Clinic Health System-Northwest Wisconsin Region, Inc.
54 mi
Critical Access
13025 8TH ST
Osseo, WI 54758
NPI 1912958026 (715) 838-5270
Mayo Clinic Jacksonville
1,077 mi
Health Service
4500 SAN PABLO RD S
Jacksonville, FL 32224
  • Reassigned Medicare billing, Wisconsin enrollment
  • 37 clinicians in this Medicare group
NPI 1174143986 (904) 953-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
133 services131 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
47 services16 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
33 services33 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
17 services17 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
15 services15 patients

Hospital Affiliations CMS Care Compare 5

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

Winona Health Services

Acute Care Hospitals · Winona, MN
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240044
Location855 Mankato AvenueWinona, MN 55987 · Winona County
Emergency services Birthing friendly

Gundersen Lutheran Medical Center

Acute Care Hospitals · La Crosse, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520087
Location1910 South AveLa Crosse, WI 54601 · La Crosse County
Emergency services Birthing friendly

Mile Bluff Medical Center

Acute Care Hospitals · Mauston, WI
OwnershipProprietary
CMS Certification Number520109
Location1050 Division StMauston, WI 53948 · Juneau County
Emergency services Birthing friendly

Gundersen St Josephs Hospital And Clinics

Critical Access Hospitals · Hillsboro, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521304
Location400 Water AveHillsboro, WI 54634 · Vernon County
Emergency services

Vernon Memorial Hospital

Critical Access Hospitals · Viroqua, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number521348
Location507 South Main StViroqua, WI 54665 · Vernon County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54601 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
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier18 claims18 services$81.11 avg. paid by Medicare
Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$30.92 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

JEFFREY BRIAN TROHKIMOINEN M.D.
Anesthesiology
1836 SOUTH AVE, GUNDERSEN CLINIC, LTD.
LA CROSSE, WI 54601
La Crosse County (608) 775-2031
JESSICA E THESING CRNA
Nurse Anesthetist, Certified Registered
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
DR. MICHAEL DAVID SMITH PSY.D.
Psychologist
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
JESSICA MAE RASMUSSEN
Surgery
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
JULIE SONSALLA NP
Nurse Practitioner (Adult Health)
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
LAURA KLINGBEIL
Orthopaedic Surgery
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
SUSAN CAROL SORRENTINO RN
Registered Nurse (Addiction (Substance Use Disorder))
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
NAOMI MUTHONI RUIRU NP
Nurse Practitioner (Family)
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300

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 Carla Grogan's NPI number?

The NPI number for Carla Grogan is 1144586405. It was assigned to this individual provider in the NPPES registry on April 11, 2012. The provider is also known as Carla Carlson MD.

Where is Carla Grogan located?

Carla Grogan practices at 1836 South Ave, La Crosse, WI 54601. The listed phone number is (608) 782-7300.

What is Carla Grogan's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Carla Grogan enrolled in Medicare?

Yes. Carla Grogan 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.

Which organizations bill Medicare for Carla Grogan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carla Grogan reassigns Medicare benefits to 4 organizations: Gundersen Lutheran Medical Center, Inc (La Crosse, WI), Tri-County Memorial Hospital, Inc. (Whitehall, WI), Mayo Clinic Health System-Northwest Wisconsin Region, Inc. (Osseo, WI) and Mayo Clinic Jacksonville (Jacksonville, FL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Carla Grogan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Carla Grogan accept?

Health plans from Aspirus Health Plan list Carla Grogan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Carla Grogan affiliated with any hospitals?

According to CMS data, Carla Grogan is affiliated with Winona Health Services, Gundersen Lutheran Medical Center, Mile Bluff Medical Center, Gundersen St Josephs Hospital And Clinics and Vernon Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Carla Grogan was last updated on June 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.