NPPES file of Aug 9, 2026

Christina E. Kwack-Yuhan, M.D.

Nephrology Physician · Woburn, MA

Christina E. Kwack-Yuhan, M.D. is a nephrology physician with a practice address in Woburn, Massachusetts, and NPI 1871673244, issued on Oct 17, 2006. Check the license (Massachusetts 227037, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871673244
Name
Christina E. Kwack-Yuhan
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
227037 MA
Self-reported in NPPES; status is on the state search
Practice location
Woburn Nephrology Associates, P.C., Woburn, MA 01801
Phone
(781) 933-0710
Enumerated
Oct 17, 2006
Record last updated
Aug 20, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicaid ID
2137852 MA
Medicare enrollment
Enrolled (PECOS I20070808000105); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Christina E. Kwack-Yuhan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 227037
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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44% more Medicare Part D claims than the average nephrology physician in 2024

2,116 Medicare Part D claims for 343 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Christina Kwack-Yuhan2,116
  2. Specialty average1,465

Most prescribed

  1. Amlodipine Besylate188 claims
  2. Losartan Potassium159 claims
  3. Lisinopril135 claims
  4. Allopurinol119 claims
  5. Calcitriol109 claims
  6. Farxiga96 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $93.37

12 payments; by number, the most common kind was education; the largest payer was Travere Therapeutics, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christina Kwack-Yuhan$93.37
  2. Specialty average$3,091.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Woburn Nephrology Associates PCDover, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Christina E. Kwack-Yuhan among 417 nephrology physician records in Massachusetts

Christina E. Kwack-Yuhan, M.D. is one of 417 nephrology physician records with a practice address in Massachusetts. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.

  • NPI issued2006 · 16% of these records are older, 52% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2001 · median 2001 among the 295 with a school on file
  • Record last updated2019 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Massachusetts

There are 417 nephrology physician records in Massachusetts.

The 8 nephrology physician records with the nearest ZIP codes

  1. Michele Crage, M.D.Woburn, MA 018011710960190
  2. Katherine Michener, M.D.Woburn, MA 018011013147529
  3. Leonida Rasenas, M.D.Woburn, MA 018011548326689
  4. Beth Bouthot, MDBurlington, MA 018051275600926
  5. Eric Kerns, MDBurlington, MA 018051013189174
  6. Zeeshan Khawaja, MDBurlington, MA 018051770776148
  7. Hector Madariaga, MDBurlington, MA 018051992010375
  8. Adam Segal, M.D.Burlington, MA 018051164480810

Common questions

What is Christina E. Kwack-Yuhan, M.D.'s NPI number?

Christina E. Kwack-Yuhan, M.D.'s National Provider Identifier (NPI) is 1871673244, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christina E. Kwack-Yuhan, M.D. located?

The NPPES record lists a practice address at Woburn Nephrology Associates, P.C., Woburn, MA, 01801. Phone: (781) 933-0710. Providers update this record themselves, so call before visiting.

How can I verify Christina E. Kwack-Yuhan, M.D.'s license?

NPPES lists Massachusetts license number 227037, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Christina E. Kwack-Yuhan, M.D. prescribe under Medicare Part D?

In 2024, Christina E. Kwack-Yuhan, M.D. had 2,116 Medicare Part D claims for 343 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.