DR. CHAKSAU SHARMA MD
NPI 1851774822
Family Medicine in Greenfield, WI
About Dr. Chaksau Sharma Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHAKSAU SHARMA MD (NPI 1851774822) is an individual family medicine provider in Greenfield, Wisconsin, licensed in North Dakota (LT15432) and active in the NPI registry since July 2015. She is enrolled in Medicare PECOS, is affiliated with Ascension Se Wisconsin Hospital, and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted 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
Dr. Chaksau Sharma 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.
Medicare Billing Reassignments
2Medicare enrollment records show Chaksau Sharma reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Columbia St Marys Hospital Milwaukee Inc
- 856 clinicians in this Medicare group
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- 1,343 clinicians in this Medicare group
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
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension SE Wisconsin Hospital
Acute Care Hospitals · Milwaukee, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53220 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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.
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 Chaksau Sharma's NPI number?
The NPI number for Chaksau Sharma is 1851774822. It was assigned to this individual provider in the NPPES registry on July 8, 2015.
Where is Chaksau Sharma located?
Chaksau Sharma practices at 4600 W Loomis Rd Ste 130, Greenfield, WI 53220. The listed phone number is (414) 389-4900.
What is Chaksau Sharma's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Chaksau Sharma enrolled in Medicare?
Yes. Chaksau Sharma 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 Chaksau Sharma's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chaksau Sharma reassigns Medicare benefits to 2 organizations: Columbia St. Mary's Hospital Milwaukee, Inc (Milwaukee, WI) and Ascension Medical Group-Southeast Wisconsin Inc (Milwaukee, WI). 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 Chaksau Sharma's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Chaksau Sharma accept?
Health plans from Anthem Blue Cross and Blue Shield and Network Health list Chaksau Sharma 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 Chaksau Sharma affiliated with any hospitals?
According to CMS data, Chaksau Sharma is affiliated with Ascension SE Wisconsin Hospital.
When was this NPI record last updated?
The NPPES record for Chaksau Sharma was last updated on August 9, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. Chaksau Sharma, MD · NPI 1851774822
Family Medicine physician in Greenfield, Wisconsin. Individual provider, active in the CMS NPPES registry since July 8, 2015.
## Identity
- **NPI:** 1851774822 (Entity type: Individual)
- **Enumerated:** July 8, 2015
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** LT15432 (North Dakota)
- **Sole proprietor:** No
## Practice location
- **Address:** 4600 W LOOMIS RD STE 130, Greenfield, WI 53220-4858
- **Phone:** (414) 389-4900
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Columbia St. Mary's Hospital Milwaukee, Inc (NPI 1023064482, Milwaukee, WI); Ascension Medical Group-Southeast Wisconsin Inc (NPI 1194473066, Milwaukee, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** August 9, 2019
- **Other identifiers:** Medicaid 12083 (ND)
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Source: [NPI Profile](https://npiprofile.com/npi/1851774822) · Data from the CMS NPPES public registry.