Christopher J. Lang, M.D.
Internal Medicine Physician · Phoenix, AZ
Christopher J. Lang, M.D. is an internal medicine physician with a practice address in Phoenix, Arizona, and NPI 1801007562, issued on May 24, 2007. Check the license (Arizona 41816, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Christopher J. Lang
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 41816 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 9225 N 3RD St, Phoenix, AZ 85020
- Phone
- (602) 445-0751
- Enumerated
- May 24, 2007
- Record last updated
- Apr 17, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (602) 424-8128
- Medicaid ID
- 456099 AZ
- Medicare enrollment
- Enrolled (PECOS I20090727000557); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 9225 N 3RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sherry Booz, ANPNurse Practitioner1174514111
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Verify Christopher J. Lang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 41816Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average internal medicine physician in 2024
916 Medicare Part D claims for 308 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 63 claims were for opioids.
Most prescribed
- Oxycodone Hcl44 claims
- Pantoprazole Sodium40 claims
- Levothyroxine Sodium39 claims
- Tamsulosin Hcl39 claims
- Amlodipine Besylate38 claims
- Metoprolol Tartrate36 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): 35.4 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Affiliated Hospitalists PLCPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher J. Lang among 2,853 internal medicine physician records in Arizona
Christopher J. Lang, M.D. is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 47% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2006 · median 2003 among the 1,643 with a school on file
- Record last updated2017 · 51% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
695 internal medicine physician records list a practice address in Phoenix
They are 695 of the 31,399 NPPES records with a practice address in Phoenix, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Phoenix → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mario Avila, MDPhoenix, AZ 850201740273911
- Dianna Bastian, M.D.Phoenix, AZ 850201700869476
- John Hortareas, DOPhoenix, AZ 850201376536193
- Amy Lee, MDPhoenix, AZ 850201699760751
- Alfredo Lim, M.D.Phoenix, AZ 850201225002371
- Steven Parker, M.D.Phoenix, AZ 850201841287794
- Christopher Perez, M.D.Phoenix, AZ 850201437144318
- Kevan Pickrel, MDPhoenix, AZ 850201568455384
Common questions
What is Christopher J. Lang, M.D.'s NPI number?
Christopher J. Lang, M.D.'s National Provider Identifier (NPI) is 1801007562, issued on May 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Christopher J. Lang, M.D. located?
The NPPES record lists a practice address at 9225 N 3RD St, Phoenix, AZ, 85020. Phone: (602) 445-0751. Providers update this record themselves, so call before visiting.
How can I verify Christopher J. Lang, M.D.'s license?
NPPES lists Arizona license number 41816, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher J. Lang, M.D. prescribe under Medicare Part D?
In 2024, Christopher J. Lang, M.D. had 916 Medicare Part D claims for 308 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Christopher J. Lang, M.D.'s MIPS final score?
The 2023 MIPS final score is 35.4 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.