Christina Kwack-Yuhan, M.D.
NPI 1871673244 · Nephrology Physician · Woburn, MA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Kwack-Yuhan, M.D. is a Nephrology Physician provider in Woburn, MA (NPI 1871673244).
Provider details
- NPI number
- 1871673244
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 227037 (MA)
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
19 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
1,597 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 | 538 | $139 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 381 | $82 |
| Hemodialysis Procedure With Physician Evaluation90935 | 120 | $74 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 111 | $195 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 105 | $181 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 188 | 59 |
| Losartan Potassium | 159 | 48 |
| Lisinopril | 135 | 44 |
| Allopurinol | 119 | 38 |
| Calcitriol | 109 | 32 |
| Dapagliflozin Propanediolbrand: Farxiga | 96 | 24 |
| Hydrochlorothiazide | 85 | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$93 across 12 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
- 2006-10-17
- Last updated
- 2019-08-20
Frequently asked questions
- What is Christina Kwack-Yuhan's NPI number?
- Christina Kwack-Yuhan's National Provider Identifier (NPI) is 1871673244, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Kwack-Yuhan's specialty?
- Christina Kwack-Yuhan is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Christina Kwack-Yuhan located?
- Christina Kwack-Yuhan's practice location on file with NPPES is Woburn Nephrology Associates, P.C., Woburn, MA 01801.
- What is Christina Kwack-Yuhan's phone number?
- The practice phone number listed in the NPPES registry for Christina Kwack-Yuhan is (781) 933-0710.
- Does Christina Kwack-Yuhan accept Medicare?
- Christina Kwack-Yuhan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Kwack-Yuhan's NPI active?
- Yes — Christina Kwack-Yuhan's NPI (1871673244) is active in the NPPES registry as of the last update on 2019-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.