Grace W. Pien, MD
Sleep Medicine (Internal Medicine) Physician · Philadelphia, PA
Grace W. Pien, MD is a sleep medicine (internal medicine) physician with a practice address in Philadelphia, Pennsylvania, and NPI 1427077650, issued on Jul 19, 2006. Check the license (Pennsylvania MD069768L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Grace W. Pien
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License number
- MD069768L PA
Self-reported in NPPES; status is on the state search - Practice location
- 3624 Market St FL 2, Philadelphia, PA 19104
- Phone
- (215) 662-7772
- Enumerated
- Jul 19, 2006
- Record last updated
- Sep 17, 2023
- Fax
- (215) 349-8038
- Medicaid ID
- 0018841520001 PA
- Medicare enrollment
- Enrolled (PECOS I20100310000466); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1994
- Entity
- Type 1 · individual
8 nearest sleep medicine (internal medicine) physician records → All 58 in Pennsylvania → Look up another NPI →
Verify Grace W. Pien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD069768LCheck 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 sleep medicine (internal medicine) physician in 2024
20 Medicare Part D claims, against an average of 585 among the 852 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.4 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).
Grace W. Pien among 58 sleep medicine (internal medicine) physician records in Pennsylvania
Grace W. Pien, MD is one of 58 sleep medicine (internal medicine) physician records with a practice address in Pennsylvania. 86% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 62% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1994 · median 2004 among the 43 with a school on file
- Record last updated2023 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sleep Medicine (Internal Medicine) Physician providers in Pennsylvania
There are 58 sleep medicine (internal medicine) physician records in Pennsylvania.
All 58 in Pennsylvania → Every provider in Philadelphia → Sleep Medicine (Internal Medicine) Physician nationwide →
The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes
- Ron Anafi, MDPhiladelphia, PA 191041548324080
- Maria Antoniou, MDPhiladelphia, PA 191041689600504
- Belen Esparis, MDPhiladelphia, PA 191041740215979
- Barry Fields, MDPhiladelphia, PA 191041104000314
- Nalaka Gooneratne, MDPhiladelphia, PA 191041235170663
- Indira Gurubhagavatula, M.D.Philadelphia, PA 191041366455966
- Jorge Mora, M.D.Philadelphia, PA 191041720167257
- Dafna Ofer, MDPhiladelphia, PA 191041760697601
Common questions
What is Grace W. Pien, MD's NPI number?
Grace W. Pien, MD's National Provider Identifier (NPI) is 1427077650, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Grace W. Pien, MD located?
The NPPES record lists a practice address at 3624 Market St FL 2, Philadelphia, PA, 19104. Phone: (215) 662-7772. Providers update this record themselves, so call before visiting.
How can I verify Grace W. Pien, MD's license?
NPPES lists Pennsylvania license number MD069768L, 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 Grace W. Pien, MD prescribe under Medicare Part D?
In 2024, Grace W. Pien, MD had 20 Medicare Part D claims; the average among sleep medicine (internal medicine) physician prescribers was 585. Part D covers Medicare prescriptions only.
What is Grace W. Pien, MD's MIPS final score?
The 2023 MIPS final score is 74.4 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.