Caroline Kim Kupfer, M.D.
NPI 1083643480 · Internal Medicine Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Caroline Kim Kupfer, M.D. is a Internal Medicine Physician provider in Phoenix, AZ (NPI 1083643480).
Provider details
- NPI number
- 1083643480
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 037189 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
182 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 81 | $122 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 56 | $171 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 34 | $125 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 11 | $87 |
Typical Medicare-allowed amounts for these services range $87–$171 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 172 | 56 |
| Levothyroxine Sodium | 170 | 34 |
| Rosuvastatin Calcium | 123 | 38 |
| Lisinopril | 123 | 35 |
| Omeprazole | 89 | 29 |
| Amlodipine Besylate | 83 | 27 |
| Metformin Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 2321 N. Wisconsin AvenuePeoria, IL 61603Phone: (309) 680-7600Fax: (309) 681-8620
Registry dates
- Enumerated
- 2006-06-30
- Last updated
- 2023-06-20
- Certified
- 2023-06-20
Frequently asked questions
- What is Caroline Kim Kupfer's NPI number?
- Caroline Kim Kupfer's National Provider Identifier (NPI) is 1083643480, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Caroline Kim Kupfer's specialty?
- Caroline Kim Kupfer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Caroline Kim Kupfer located?
- Caroline Kim Kupfer's practice location on file with NPPES is 500 W Thomas Rd Ste 900a, Phoenix, AZ 85013-4223.
- What is Caroline Kim Kupfer's phone number?
- The practice phone number listed in the NPPES registry for Caroline Kim Kupfer is (602) 406-3540.
- Does Caroline Kim Kupfer accept Medicare?
- Caroline Kim Kupfer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Caroline Kim Kupfer's NPI active?
- Yes — Caroline Kim Kupfer's NPI (1083643480) is active in the NPPES registry as of the last update on 2023-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.