Millicent G. Zacher, D.O.
Reproductive Endocrinology Physician · Philadelphia, PA
Millicent G. Zacher, D.O. is a reproductive endocrinology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1508895749, issued on Jul 1, 2006. Check the license (Pennsylvania OS004380L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Millicent G. Zacher
- Credential
- D.O.
- Primary taxonomy
- Reproductive Endocrinology Physician 207VE0102X
- License number
- OS004380L PA
Self-reported in NPPES; status is on the state search - Practice location
- 833 Chestnut Street, Philadelphia, PA 19107
- Phone
- (215) 955-5000
- Enumerated
- Jul 1, 2006
- Record last updated
- Sep 9, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (215) 923-1089
- Medicaid ID
- 0010780350004 PA
- Medicare enrollment
- Enrolled (PECOS I20040519000165); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1979
- Entity
- Type 1 · individual
8 nearest reproductive endocrinology physician records → All 83 in Pennsylvania → Look up another NPI →
Also registered at 833 Chestnut Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lily Ackermann, M.D.Internal Medicine Physician1144385469
- Huda Al-Kouatly, M.D.Maternal & Fetal Medicine Physician1548337041
- Nwamaka AmobiFamily Medicine Physician1730874421
- Nnaemeka Anyadike, M.D.Internal Medicine Physician1265614366
- Janis Bonat, CRNPFamily Nurse Practitioner1154434702
- Yasmin Brahmbhatt, MDNephrology Physician1891967006
Verify Millicent G. Zacher in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS004380LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average reproductive endocrinology physician in 2024
12 Medicare Part D claims, against an average of 82 among the 302 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.
Bills Medicare through one group practice
- Jefferson University PhysiciansPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Millicent G. Zacher among 83 reproductive endocrinology physician records in Pennsylvania
Millicent G. Zacher, D.O. is one of 83 reproductive endocrinology physician records with a practice address in Pennsylvania. 76% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 49% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated1979 · median 2000 among the 24 with a school on file
- Record last updated2014 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VE0102X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Reproductive Endocrinology Physician providers in Pennsylvania
There are 83 reproductive endocrinology physician records in Pennsylvania.
All 83 in Pennsylvania → Every provider in Philadelphia → Reproductive Endocrinology Physician nationwide →
The 8 reproductive endocrinology physician records with the nearest ZIP codes
- Frances Batzer Baylson, M.D.Philadelphia, PA 191071528125903
- Scott Edwards, MDPhiladelphia, PA 191071710032743
- Benjamin Gocial, M.D.Philadelphia, PA 191071104983766
- Clarisa Gracia, MDPhiladelphia, PA 191071811923055
- Jacqueline Gutmann, M.D.Philadelphia, PA 191071063579431
- Leonore Huppert, M.D.Philadelphia, PA 191071588603559
- Caleb Kallen, M.D.Philadelphia, PA 191071407885114
- Suleena Kalra, MDPhiladelphia, PA 191071356496301
Common questions
What is Millicent G. Zacher, D.O.'s NPI number?
Millicent G. Zacher, D.O.'s National Provider Identifier (NPI) is 1508895749, issued on Jul 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Millicent G. Zacher, D.O. located?
The NPPES record lists a practice address at 833 Chestnut Street, Philadelphia, PA, 19107. Phone: (215) 955-5000. Providers update this record themselves, so call before visiting.
How can I verify Millicent G. Zacher, D.O.'s license?
NPPES lists Pennsylvania license number OS004380L, 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 Millicent G. Zacher, D.O. prescribe under Medicare Part D?
In 2024, Millicent G. Zacher, D.O. had 12 Medicare Part D claims; the average among reproductive endocrinology physician prescribers was 82. 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.