Ashley M. Un, MD
Psychiatry Physician · Philadelphia, PA
Ashley M. Un, MD is a psychiatry physician with a practice address in Philadelphia, Pennsylvania, and NPI 1366861817, issued on Apr 14, 2014. Check the license (Pennsylvania MD458888, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Ashley M. Un
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD458888 PA
Self-reported in NPPES; status is on the state search - Practice location
- 800 Spruce St FL 4, Philadelphia, PA 19107
- Phone
- (215) 829-3474
- Enumerated
- Apr 14, 2014
- Record last updated
- Oct 29, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (215) 829-5456
- Medicare enrollment
- Enrolled (PECOS I20181023000739); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →
Also registered at 800 Spruce St FL 4
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kyla Gustavson, CRNPPsychiatric/Mental Health Nurse Practitioner1609380021
- Emily Haimes, PHDPsychologist1841778438
- Daniel Moadel, MDPsychiatry Physician1992169221
- Mitali Patnaik, M.D.Psychiatry Physician1457606402
Verify Ashley M. Un in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD458888Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average psychiatry physician in 2024
2,036 Medicare Part D claims for 107 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims.
Most prescribed
- Olanzapine180 claims
- Quetiapine Fumarate163 claims
- Venlafaxine Hcl Er149 claims
- Clonazepam148 claims
- Aripiprazole98 claims
- Duloxetine Hcl87 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 practice group's MIPS final score for 2023 (Medicare payment program): 85.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University OF Penn - Medical GroupPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ashley M. Un among 2,662 psychiatry physician records in Pennsylvania
Ashley M. Un, MD is one of 2,662 psychiatry physician records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 72% of them.
- NPI issued2014 · 72% of these records are older, 26% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2014 · median 2003 among the 1,186 with a school on file
- Record last updated2019 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
727 psychiatry physician records list a practice address in Philadelphia
They are 727 of the 42,849 NPPES records with a practice address in Philadelphia, and 2,662 psychiatry physician records in Pennsylvania.
All 2,662 in Pennsylvania → Every provider in Philadelphia → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Herbert Adler, MDPhiladelphia, PA 191071356347389
- Salman AkhtarPhila, PA 191071548285091
- Ethel Campbell, MDPhiladelphia, PA 191071467552380
- Robert Dreyfus, M.D.Philadelphia, PA 191071689662363
- John Lauriello, MDPhiladelphia, PA 191071639185291
- Rajnish Mago, M.D.Phila, PA 191071770504821
- Robert McFadden, M.D.Philadelphia, PA 191071396753182
- Deanna Nobleza, MDPhiladelphia, PA 191071851499586
Common questions
What is Ashley M. Un, MD's NPI number?
Ashley M. Un, MD's National Provider Identifier (NPI) is 1366861817, issued on Apr 14, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Ashley M. Un, MD located?
The NPPES record lists a practice address at 800 Spruce St FL 4, Philadelphia, PA, 19107. Phone: (215) 829-3474. Providers update this record themselves, so call before visiting.
How can I verify Ashley M. Un, MD's license?
NPPES lists Pennsylvania license number MD458888, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ashley M. Un, MD prescribe under Medicare Part D?
In 2024, Ashley M. Un, MD had 2,036 Medicare Part D claims for 107 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Ashley M. Un, MD's MIPS final score?
The 2023 MIPS final score is 85.5 of 100, reported for the practice group. 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.