NPPES file of Aug 9, 2026

Christine Lynn Mackey, MD

Internal Medicine Physician · Pittsburgh, PA

Christine Lynn Mackey, MD is an internal medicine physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1427059054, issued on Aug 4, 2005. Check the license (Pennsylvania MD421539, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1427059054
Name
Christine Lynn Mackey
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD421539 PA
Self-reported in NPPES; status is on the state search
Practice location
1307 Federal St Ste 304, Pittsburgh, PA 15212
Phone
(412) 359-3682
Enumerated
Aug 4, 2005
Record last updated
Oct 6, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(412) 359-8541
Medicaid IDs
001948859 PA
3810002463 WV
Medicare enrollment
Enrolled (PECOS I20100107000071); accepts Medicare assignment
Medical or professional school
Geisel School Of Medicine At Dartmouth, 2000
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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Also registered at 1307 Federal St Ste 304

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alicia Amalfitano, MS, RD, LDNRegistered Dietitian1467928762
  2. Maria Chrzastowska, PA-CMedical Physician Assistant1154333151
  3. Sonia Dhawan, MDInternal Medicine Physician1639169352
  4. Madeline Frischman, PA-CPhysician Assistant1619688736
  5. Marc Itskowitz, MDInternal Medicine Physician1922009901
  6. Abirami Janakiraman, MDInternal Medicine Physician1366754301

Verify Christine Lynn Mackey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD421539
    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 Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.2 times the Medicare Part D claims of the average internal medicine physician in 2024

6,988 Medicare Part D claims for 480 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 60 claims were for opioids.

  1. Christine Mackey6,988
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium639 claims
  2. Amlodipine Besylate342 claims
  3. Levothyroxine Sodium318 claims
  4. Lisinopril272 claims
  5. Rosuvastatin Calcium262 claims
  6. Metoprolol Succinate224 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.

The MIPS final score for 2023 (Medicare payment program): 93.8 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score85.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $22.39

1 payment: food and beverage; the largest payer was Inari Medical, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christine Mackey$22.39
  2. Specialty average$1,303.06

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. Allegheny ClinicPittsburgh, PA

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

Christine Lynn Mackey among 7,300 internal medicine physician records in Pennsylvania

Christine Lynn Mackey, MD is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 91% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2000 · median 2008 among the 4,208 with a school on file
  • Record last updated2020 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

750 internal medicine physician records list a practice address in Pittsburgh

They are 750 of the 28,866 NPPES records with a practice address in Pittsburgh, and 7,300 internal medicine physician records in Pennsylvania.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Paul Carson, M.D.Pittsburgh, PA 152121679578603
  2. Elizabeth Cuevas, MDPittsburgh, PA 152121861482507
  3. Sonia Dhawan, MDPittsburgh, PA 152121639169352
  4. Andrew HallPittsburgh, PA 152121275538381
  5. Marc Itskowitz, MDPittsburgh, PA 152121922009901
  6. Sharon Kiely, MDPittsburgh, PA 152121639170616
  7. Patrick Perri, MDPittsburgh, PA 152121427048164
  8. David Piontkowsky, MDPittsburgh, PA 152121174525885

Common questions

What is Christine Lynn Mackey, MD's NPI number?

Christine Lynn Mackey, MD's National Provider Identifier (NPI) is 1427059054, issued on Aug 4, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Christine Lynn Mackey, MD located?

The NPPES record lists a practice address at 1307 Federal St Ste 304, Pittsburgh, PA, 15212. Phone: (412) 359-3682. Providers update this record themselves, so call before visiting.

How can I verify Christine Lynn Mackey, MD's license?

NPPES lists Pennsylvania license number MD421539, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Christine Lynn Mackey, MD prescribe under Medicare Part D?

In 2024, Christine Lynn Mackey, MD had 6,988 Medicare Part D claims for 480 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Christine Lynn Mackey, MD's MIPS final score?

The 2023 MIPS final score is 93.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.