Katherine Grunzweig, MD
NPI 1902268279 · Plastic and Reconstructive Surgery Physician · Maywood, IL
Enrolled with Medicare as Practitioner - Plastic and Reconstructive Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Grunzweig, MD is a Plastic and Reconstructive Surgery Physician provider in Maywood, IL (NPI 1902268279).
Provider details
- NPI number
- 1902268279
- Entity type
- Individual
- Primary specialty
- Plastic and Reconstructive Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 036.163993 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
55 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 33 | $100 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 22 | $139 |
Typical Medicare-allowed amounts for these services range $100–$139 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$619 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-03-24
- Last updated
- 2024-03-18
- Certified
- 2024-03-15
Frequently asked questions
- What is Katherine Grunzweig's NPI number?
- Katherine Grunzweig's National Provider Identifier (NPI) is 1902268279, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Grunzweig's specialty?
- Katherine Grunzweig is listed in the NPPES registry with a primary specialty of Plastic and Reconstructive Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Grunzweig located?
- Katherine Grunzweig's practice location on file with NPPES is 2160 S 1st Ave, Maywood, IL 60153-3328.
- What is Katherine Grunzweig's phone number?
- The practice phone number listed in the NPPES registry for Katherine Grunzweig is (708) 216-9000.
- Does Katherine Grunzweig accept Medicare?
- Katherine Grunzweig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Grunzweig's NPI active?
- Yes — Katherine Grunzweig's NPI (1902268279) is active in the NPPES registry as of the last update on 2024-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.