Jennifer Elizabeth Castillo, MD
Internal Medicine Physician · Ann Arbor, MI
Jennifer Elizabeth Castillo, MD is an internal medicine physician with a practice address in Ann Arbor, Michigan, and NPI 1902995863, issued on Oct 11, 2006. Check the license (Michigan 4301079987, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Jennifer Elizabeth Castillo
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301079987 MI
Self-reported in NPPES; status is on the state search - Practice location
- 24 Frank Lloyd Wright Dr Ste L2200, Ann Arbor, MI 48105
- Phone
- (734) 930-4020
- Enumerated
- Oct 11, 2006
- Record last updated
- May 1, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (734) 769-8948
- Medicaid ID
- 4753520 MI
- Medicare enrollment
- Enrolled (PECOS I20050809000627); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 24 Frank Lloyd Wright Dr Ste L2200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Chavey, MDFamily Medicine Physician1366530867
- Korisma Grant, LMSWClinical Social Worker1689103202
- Stephen Hickner, MDObstetrics & Gynecology Physician1386699098
- Courtney Prochaska, CPNP-PCPrimary Care Nurse Practitioner1881477487
- Elizabeth Sorenson, PH.D.Clinical Psychologist1275667263
Verify Jennifer Elizabeth Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301079987Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average internal medicine physician in 2024
3,063 Medicare Part D claims for 214 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 64 claims were for opioids.
Most prescribed
- Amlodipine Besylate195 claims
- Atorvastatin Calcium174 claims
- Losartan Potassium130 claims
- Levothyroxine Sodium117 claims
- Rosuvastatin Calcium114 claims
- Lisinopril112 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.
Bills Medicare through one group practice
- Emmaus Health PartnersAnn Arbor, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
479 internal medicine physician records list a practice address in Ann Arbor
They are 479 of the 15,616 NPPES records with a practice address in Ann Arbor, and 5,735 internal medicine physician records in Michigan.
All 479 in Ann Arbor → All 5,735 in Michigan → Every provider in Ann Arbor →
Other internal medicine physician records in Michigan
- Jamie Therese Abad, MDDetroit, MI1700573359
- Tomas Abalo, M.D.Iron Mountain, MI1336199975
- Ali Abbas, M.D.Pontiac, MI1972167526
- Sura Abbas, MDWarren, MI1801687405
- Ramzi Abbasi, MDSaginaw, MI1164270005
- Saadat Abbasi, MDKalamazoo, MI1912005596
- Shahzaman Abbasi, MDLansing, MI1376512111
- Youssef Abbiss, D.O.Mount Clemens, MI1982991881
- Valerie Abbott, MDSouthfield, MI1740289487
- Samer Abboud, MDSaginaw, MI1245804178
Common questions
What is Jennifer Elizabeth Castillo, MD's NPI number?
Jennifer Elizabeth Castillo, MD's National Provider Identifier (NPI) is 1902995863, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Elizabeth Castillo, MD located?
The NPPES record lists a practice address at 24 Frank Lloyd Wright Dr Ste L2200, Ann Arbor, MI, 48105. Phone: (734) 930-4020. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Elizabeth Castillo, MD's license?
NPPES lists Michigan license number 4301079987, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jennifer Elizabeth Castillo, MD prescribe under Medicare Part D?
In 2024, Jennifer Elizabeth Castillo, MD had 3,063 Medicare Part D claims for 214 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.