Nasser Hajaig, MD
Internal Medicine Physician · Phoenix, AZ
Nasser Hajaig, MD is an internal medicine physician with a practice address in Phoenix, Arizona, and NPI 1457324204, issued on Feb 10, 2006. Check the license (Arizona 25018, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Nasser Hajaig
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25018 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 19646 N 27TH Ave, Phoenix, AZ 85027
- Phone
- (623) 580-5390
- Enumerated
- Feb 10, 2006
- Record last updated
- Feb 3, 2022
- Fax
- (623) 580-5397
- Medicaid ID
- 387044 AZ
- Medicare enrollment
- Enrolled (PECOS I20210812003979); 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 19646 N 27TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nasser Hajaig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 25018Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
98 Medicare Part D claims for 27 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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: $154,925.94
139 payments; by number, the most common kind was consulting fee; the largest payer was Takeda Pharmaceuticals U.S.A., 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Circle The CityPhoenix, AZ
- Forward Care Family Practice, PLLCGlendale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nasser Hajaig among 2,853 internal medicine physician records in Arizona
Nasser Hajaig, MD 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 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1993 · median 2003 among the 1,643 with a school on file
- Record last updated2022 · 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
- Marium Asad, M.D.Phoenix, AZ 850271518458157
- Lawrence Chua, M.D.Phoenix, AZ 850271487613691
- Jatin Daas, M.DPhoenix, AZ 850271326141722
- Uma Gunnala, MDPhoenix, AZ 850271881770220
- Shailaja Gunnala, MDPhoenix, AZ 850271265503221
- Bruce Herman, M.D.Phoenix, AZ 850271801894951
- Shannan Murphy, MDPhoenix, AZ 850271083688253
- Tara Ostrom, M.D.Phoenix, AZ 850271124017009
Common questions
What is Nasser Hajaig, MD's NPI number?
Nasser Hajaig, MD's National Provider Identifier (NPI) is 1457324204, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nasser Hajaig, MD located?
The NPPES record lists a practice address at 19646 N 27TH Ave, Phoenix, AZ, 85027. Phone: (623) 580-5390. Providers update this record themselves, so call before visiting.
How can I verify Nasser Hajaig, MD's license?
NPPES lists Arizona license number 25018, 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 Nasser Hajaig, MD prescribe under Medicare Part D?
In 2024, Nasser Hajaig, MD had 98 Medicare Part D claims for 27 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.