Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

UMAR KAMAL SIDDIQUI MD
NPI 1578055984
Internal Medicine in Appleton, WI

Q: What is Umar Siddiqui's NPI number?

The NPI number for Umar Siddiqui is 1578055984. It was assigned to this individual provider in the NPPES registry on May 31, 2018.

Q: What is Umar Siddiqui's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Umar Siddiqui was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days 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.

Active since May 31, 2018PECOS EnrolledAccepts Medicare Assignment

2500 E CAPITOL DR, APPLETON, WI 54911(920) 731-5811(920) 358-1185 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Sep 10, 2026, Jul 24, 2023, Aug 29, 2022 and 2 more (5 updates tracked since 2021).

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About Umar Kamal Siddiqui Md NPPES

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

UMAR KAMAL SIDDIQUI MD (NPI 1578055984) is an individual internal medicine provider in Appleton, Wisconsin, licensed in Wisconsin (85874) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS, is affiliated with Aspirus Ironwood Hospital, and maintains a secondary practice location in Duluth.

NPPES Registry Identity

NPI1578055984

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameUMAR KAMAL SIDDIQUICredential: MD

Location Address2500 E CAPITOL DRAppleton, WI 54911-8735

Mailing Address3 Neenah CtrNeenah, WI 54956-3070 · (920) 830-5900

Phone(920) 731-5811

Fax(920) 358-1185

Sole ProprietorYes

Medical School CMSOtherGraduated 2018

Enumeration DateMay 31, 2018

Last NPPES UpdateSeptember 10, 20265 updates tracked since enumeration

NPPES CertifiedSeptember 10, 2026

✔ NPI 1578055984 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 · 85874

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 ListedInternal Medicine · Addiction MedicineTaxonomy 207RA0401X · License 036157315 (IL), 72173 (MN)

2500 E CAPITOL DR, Appleton, WI 54911

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Secondary Practice Location 1

Location 11001 E Superior St Ste 401Duluth, MN 55802-2229 · Phone (218) 249-5555

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HealthPartners, Medica, Security Health Plan.Insurance ›

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

Umar Kamal Siddiqui Md 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 ID9638572902

PECOS Enrollment IDI20220919002666

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 8

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.

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.

238 services69 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

121 services56 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.

40 services36 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

32 services32 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.

24 services15 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.

22 services20 patients

Hospital Affiliations CMS Care Compare 3

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

Aspirus Ironwood Hospital

Critical Access Hospitals · Ironwood, MI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number231333

LocationN10561 Grand View LaneIronwood, MI 49938 · Gogebic County

Emergency services Birthing friendly

University Medical Center-Mesabi/ Mesaba Clinics

Acute Care Hospitals · Hibbing, MN

OwnershipVoluntary non-profit - Other

CMS Certification Number240040

Location750 East 34th StHibbing, MN 55746 · St. Louis County

Birthing friendly

St Lukes Hospital

Acute Care Hospitals · Duluth, MN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number240047

Location915 East 1st StreetDuluth, MN 55805 · St. Louis County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54911 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.

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.

ELIZABETH A BARTHEL

Nurse Practitioner (Family)