Andrew Michael Singer, MD
Allergy & Immunology Physician · Knoxville, TN
Andrew Michael Singer, MD is an allergy & immunology physician with a practice address in Knoxville, Tennessee, and NPI 1255420188, issued on Oct 11, 2006. Check the license (Tennessee 42638, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Andrew Michael Singer
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License numbers
- 42638 TN
4301078042 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2121 Highland Ave, Knoxville, TN 37916
- Phone
- (865) 525-2640
- Enumerated
- Oct 11, 2006
- Record last updated
- Sep 28, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (865) 525-9536
- Medicaid ID
- 4519670 MI
- Medicare enrollment
- Enrolled (PECOS I20080404000084); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 85 in Tennessee → Look up another NPI →
Also registered at 2121 Highland Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Olivia Art, FNPFamily Nurse Practitioner1336976471
- Megan Brumbelow, FNPFamily Nurse Practitioner1023243714
- Christin Carter, FNPFamily Medicine Physician1366410847
- Donald Ellenburg, M.D.Allergy & Immunology Physician1548354475
- Joseph Ellenburg, D.O.Allergy & Immunology Physician1760794093
- Timothy FrazierPediatrics Physician1578657334
Verify Andrew Michael Singer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 42638Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
431 Medicare Part D claims for 87 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.
Most prescribed
- Albuterol Sulfate Hfa25 claims
- Ipratropium Bromide24 claims
- Famotidine23 claims
- Azelastine Hcl21 claims
- Prednisone21 claims
- Trelegy Ellipta18 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: $1,136.88
55 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 2,496 providers of this specialty with any payment received $8,321.81 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 one group practice
- Allergy And Asthma Affiliates, PCKnoxville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew Michael Singer among 85 allergy & immunology physician records in Tennessee
Andrew Michael Singer, MD is one of 85 allergy & immunology physician records with a practice address in Tennessee. 87% 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 22% of them.
- NPI issued2006 · 22% of these records are older, 46% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1994 · median 2001 among the 68 with a school on file
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Tennessee
There are 85 allergy & immunology physician records in Tennessee.
All 85 in Tennessee → Every provider in Knoxville → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Donald Ellenburg, M.D.Knoxville, TN 379161548354475
- Joseph Ellenburg, D.O.Knoxville, TN 379161760794093
- Kailyn GriffeyKnoxville, TN 379161043164205
- Jennifer Hall, FNPKnoxville, TN 379161063231777
- Shirley Avery, MDKnoxville, TN 379091396017018
- Jeremiah Bivins, MDKnoxville, TN 379091831355833
- Nicholas ClineKnoxville, TN 379091801356985
- Jane Conley, M.D.Knoxville, TN 379091407801608
Common questions
What is Andrew Michael Singer, MD's NPI number?
Andrew Michael Singer, MD's National Provider Identifier (NPI) is 1255420188, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Michael Singer, MD located?
The NPPES record lists a practice address at 2121 Highland Ave, Knoxville, TN, 37916. Phone: (865) 525-2640. Providers update this record themselves, so call before visiting.
How can I verify Andrew Michael Singer, MD's license?
NPPES lists Tennessee license number 42638, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Andrew Michael Singer, MD prescribe under Medicare Part D?
In 2024, Andrew Michael Singer, MD had 431 Medicare Part D claims for 87 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.