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

SIDDARTHA SIMHA MD
NPI 1649896531
Anesthesiology - Pain Medicine in Munster, IN

Active since June 17, 2020PECOS Enrolled
8840 CALUMET AVE STE 103, MUNSTER, IN 46321(219) 836-7246(219) 836-6454 Get Directions Write a Review

NPPES record last updated: October 20, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 4, 2024, Jun 30, 2024, Jun 17, 2020 (3 updates tracked since 2020).

About Siddartha Simha Md NPPES

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

SIDDARTHA SIMHA MD (NPI 1649896531) is an individual pain medicine provider in Munster, Indiana, licensed in Indiana (01096160A) and active in the NPI registry since June 2020. He is enrolled in Medicare PECOS, is affiliated with St Catherine Hospital Inc, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1649896531
Entity TypeIndividualMale
Primary Taxonomy207LP2900X
Provider Legal NameSIDDARTHA SIMHACredential: MD
Location Address8840 CALUMET AVE STE 103Munster, IN 46321-2546
Mailing Address7951 Shoal Creek Blvd Ste 300Austin, TX 78757-7582 · (219) 836-7246 · Fax (219) 836-6454
Phone(219) 836-7246
Fax(219) 836-6454
Sole ProprietorNo
Medical School CMSOakland Univ, William Beaumont School Of MedicineGraduated 2020
Enumeration DateJune 17, 2020
Last NPPES UpdateOctober 20, 20263 updates tracked since enumeration
NPPES CertifiedOctober 20, 2026
✔ NPI 1649896531 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207LP2900X
License✔ Licensed in IN · 01096160A
Definition
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.
8840 CALUMET AVE STE 103, Munster, IN 46321
Open in Google Maps ↗

Secondary Practice Locations 2

Location 124 Joliet StDyer, IN 46311-1705 · Phone (219) 836-7246 · Fax (219) 836-6454
Location 21100 S Calumet Rd Ste 1Chesterton, IN 46304-3279 · Phone (219) 836-7246 · Fax (219) 836-6454

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

Siddartha Simha 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 ID1658793476
PECOS Enrollment IDI20250528002046
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

2

Medicare enrollment records show Siddartha Simha reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Midwest Pain Management Centers,llc
Same address
Pain Medicine
8840 CALUMET AVE STE 103
Munster, IN 46321
  • Reassigned Medicare billing, Indiana enrollment
  • 9 clinicians in this Medicare group
NPI 1962401745 (219) 836-7246
Pain Management Specialists LLC
Same address
Pain
8840 CALUMET AVE, SUITE 103
Munster, IN 46321
  • Reassigned Medicare billing, Indiana enrollment
  • 11 clinicians in this Medicare group
NPI 1881693562 (219) 836-7246

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

Hospital Affiliations CMS Care Compare 4

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

St Catherine Hospital Inc

Acute Care Hospitals · East Chicago, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150008
Location4321 Fir StreetEast Chicago, IN 46312 · Lake County
Emergency services Birthing friendly

St Mary Medical Center Inc

Acute Care Hospitals · Hobart, IN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150034
Location1500 S Lake Park AveHobart, IN 46342 · Lake County
Emergency services Birthing friendly

Franciscan Health Dyer

Acute Care Hospitals · Dyer, IN
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number150090
Location24 Joliet StDyer, IN 46311 · Lake County
Emergency services Birthing friendly

Community Hospital

Acute Care Hospitals · Munster, IN
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150125
Location901 Macarthur BlvdMunster, IN 46321 · Lake County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 6

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

BRETT J BONYNGE MD
Pain Medicine (Interventional Pain Medicine)
8840 CALUMET AVE STE 103
MUNSTER, IN 46321
Lake County (219) 836-7246
GLORIA NELSAN ARTEAGA PT
Physical Therapist
8840 CALUMET AVE STE 103
MUNSTER, IN 46321
Lake County (219) 703-6678
DR. NIKHIL A SHETTY M.D.
Pain Medicine (Interventional Pain Medicine)
8840 CALUMET AVE STE 103
MUNSTER, IN 46321
Lake County (219) 836-7246
JESSICA LYNN MERCADO NP-C
Nurse Practitioner (Family)
8840 CALUMET AVE STE 103
MUNSTER, IN 46321
Lake County (219) 836-7246
GLADYS SANDOVAL
Nurse Practitioner (Family)
8840 CALUMET AVE STE 103
MUNSTER, IN 46321
Lake County (219) 836-7246
MIDWEST PAIN MANAGEMENT CENTERS,LLC
Pain Medicine (Pain Medicine)
8840 CALUMET AVE STE 103
MUNSTER, IN 46321
Lake County (219) 836-7246

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 Siddartha Simha's NPI number?

The NPI number for Siddartha Simha is 1649896531. It was assigned to this individual provider in the NPPES registry on June 17, 2020.

Where is Siddartha Simha located?

Siddartha Simha practices at 8840 Calumet Ave Ste 103, Munster, IN 46321. The listed phone number is (219) 836-7246.

What is Siddartha Simha's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Is Siddartha Simha enrolled in Medicare?

Yes. Siddartha Simha 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 Siddartha Simha's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Siddartha Simha reassigns Medicare benefits to 2 organizations: Midwest Pain Management Centers,llc (Munster, IN) and Pain Management Specialists LLC (Munster, IN). 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 Siddartha Simha's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Siddartha Simha affiliated with any hospitals?

According to CMS data, Siddartha Simha is affiliated with St Catherine Hospital Inc, St Mary Medical Center Inc, Franciscan Health Dyer and Community Hospital.

When was this NPI record last updated?

The NPPES record for Siddartha Simha was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.