NPPES file of Aug 9, 2026

David Constable, M.D.

Internal Medicine Physician · Glendale, CA

David Constable, M.D. is an internal medicine physician with a practice address in Glendale, California, and NPI 1710308432, issued on Dec 23, 2013. Check the license (California A133385, as entered in NPPES) on the Medical Board of California; 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
1710308432
Name
David Constable
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A133385 CA
Self-reported in NPPES; status is on the state search
Practice location
1505 Wilson Ter Ste 310, Glendale, CA 91206
Phone
(818) 550-1998
Enumerated
Dec 23, 2013
Record last updated
May 5, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180523000887); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2013
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 1505 Wilson Ter Ste 310

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

  1. Arash Alborzi, M.D.Infectious Disease Physician1770582165
  2. Sevag Bastian, M.D.Orthopaedic Surgery Physician1740540244
  3. Rodney Nocon, NPAdult Medicine Physician1164008850

Verify David Constable in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A133385
    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 California 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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98% fewer Medicare Part D claims than the average internal medicine physician in 2024

61 Medicare Part D claims for 19 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. David Constable61
  2. Specialty average3,176

Most prescribed

  1. Ampicillin-Sulbactam13 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): 45 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 score55.6
  2. Costout of 100 · 30%42.6
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Bills Medicare through one group practice

  1. Arash Alborzi MD IncGlendale, CA

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

David Constable among 17,696 internal medicine physician records in California

David Constable, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 71% of them.

  • NPI issued2013 · 71% of these records are older, 26% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2013 · median 2004 among the 11,065 with a school on file
  • Record last updated2021 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

92 internal medicine physician records list a practice address in Glendale

They are 92 of the 4,742 NPPES records with a practice address in Glendale, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Ruzanna Alexanian, M.D.Glendale, CA 912061699738047
  2. William Convalecer, M.D.Glendale, CA 912061699794594
  3. John Cooper, MDGlendale, CA 912061275597163
  4. Devinder Gandhi, MDGlendale, CA 912061467492371
  5. Serafin Garcia, M.D.Glendale, CA 912061871501288
  6. Helena Gerundo, M.D.Glendale, CA 912061962414219
  7. Brooke Harmssen, D.O.Glendale, CA 912061083110456
  8. Brian Kan, M.D.Glendale, CA 912061336177484

Common questions

What is David Constable, M.D.'s NPI number?

David Constable, M.D.'s National Provider Identifier (NPI) is 1710308432, issued on Dec 23, 2013. An NPI identifies a provider in billing; it is not a license.

Where is David Constable, M.D. located?

The NPPES record lists a practice address at 1505 Wilson Ter Ste 310, Glendale, CA, 91206. Phone: (818) 550-1998. Providers update this record themselves, so call before visiting.

How can I verify David Constable, M.D.'s license?

NPPES lists California license number A133385, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David Constable, M.D. prescribe under Medicare Part D?

In 2024, David Constable, M.D. had 61 Medicare Part D claims for 19 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is David Constable, M.D.'s MIPS final score?

The 2023 MIPS final score is 45 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.