NPPES file of Aug 9, 2026

Harsimran Singh, MD

Family Medicine Physician · Phoenix, AZ

Harsimran Singh, MD is a family medicine physician with a practice address in Phoenix, Arizona, and NPI 1801878962, issued on Nov 15, 2005. Check the license (Arizona 33819, as entered in NPPES) on the Arizona Medical Board; 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
1801878962
Name
Harsimran Singh
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
33819 AZ
Self-reported in NPPES; status is on the state search
Practice location
4120 N 108TH Ave, Phoenix, AZ 85037
Phone
(623) 872-1818
Enumerated
Nov 15, 2005
Record last updated
Jun 13, 2023
Fax
(623) 872-1819
Medicaid ID
942921 AZ
Medicare enrollment
Enrolled (PECOS I20050721000810); 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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Also registered at 4120 N 108TH Ave

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

  1. Zachary MillsHearing Instrument Specialist1336344860

Verify Harsimran Singh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 33819
    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 Arizona 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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3.0 times the Medicare Part D claims of the average family medicine physician in 2024

10,486 Medicare Part D claims for 599 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 202 claims were for opioids.

  1. Harsimran Singh10,486
  2. Specialty average3,544

Most prescribed

  1. Levothyroxine Sodium416 claims
  2. Atorvastatin Calcium406 claims
  3. Losartan Potassium405 claims
  4. Lisinopril351 claims
  5. Amlodipine Besylate330 claims
  6. Rosuvastatin Calcium322 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: $751.39

30 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Harsimran Singh$751.39
  2. Specialty average$902.55

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. All Family Care PCPhoenix, AZ

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

Harsimran Singh among 3,119 family medicine physician records in Arizona

Harsimran Singh, MD is one of 3,119 family 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1987 · median 2006 among the 1,775 with a school on file
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

649 family medicine physician records list a practice address in Phoenix

They are 649 of the 31,399 NPPES records with a practice address in Phoenix, and 3,119 family medicine physician records in Arizona.

The 8 family medicine physician records with the nearest ZIP codes

  1. Maria AorahaPhoenix, AZ 850371972318202
  2. Sarah BarnardPhoenix, AZ 850371023733854
  3. Deborah Calhoun, NP-CPhoenix, AZ 850371306650601
  4. Jonathan Chorney, M.D.Phoenix, AZ 850371235541269
  5. Gregory Chrostowski, M.D.Phoenix, AZ 850371831181502
  6. Agnieszka Chrostowski, M.D.Phoenix, AZ 850371790777456
  7. Alan Coon, D.OPhoenix, AZ 850371649224981
  8. Katelyn Geyer, DOPhoenix, AZ 850371144617812

Common questions

What is Harsimran Singh, MD's NPI number?

Harsimran Singh, MD's National Provider Identifier (NPI) is 1801878962, issued on Nov 15, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Harsimran Singh, MD located?

The NPPES record lists a practice address at 4120 N 108TH Ave, Phoenix, AZ, 85037. Phone: (623) 872-1818. Providers update this record themselves, so call before visiting.

How can I verify Harsimran Singh, MD's license?

NPPES lists Arizona license number 33819, 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 Harsimran Singh, MD prescribe under Medicare Part D?

In 2024, Harsimran Singh, MD had 10,486 Medicare Part D claims for 599 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.