Jennifer Castillo, MD
NPI 1902995863 · Internal Medicine Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Castillo, MD is a Internal Medicine Physician provider in Ann Arbor, MI (NPI 1902995863).
Provider details
- NPI number
- 1902995863
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301079987 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
405 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 183 | $128 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 58 | $129 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 46 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 31 | $90 |
| Administration of Pneumococcal VaccineG0009 | 30 | $33 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 195 | 45 |
| Atorvastatin Calcium | 174 | 47 |
| Losartan Potassium | 130 | 30 |
| Levothyroxine Sodium | 117 | 31 |
| Rosuvastatin Calcium | 114 | 33 |
| Lisinopril | 112 | 24 |
| Gabapentin |
Practice location
Mailing address
Additional practice locations (2)
- 700 East Woodland DrSaline, MI 48176-1620Phone: (734) 429-2302Fax: (734) 429-1879
- 700 East Woodland DrSaline, MI 48176-1620Phone: (734) 429-2302Fax: (734) 429-1879
Registry dates
- Enumerated
- 2006-10-11
- Last updated
- 2019-05-01
Frequently asked questions
- What is Jennifer Castillo's NPI number?
- Jennifer Castillo's National Provider Identifier (NPI) is 1902995863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Castillo's specialty?
- Jennifer Castillo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Castillo located?
- Jennifer Castillo's practice location on file with NPPES is 24 Frank Lloyd Wright Dr Ste L2200, Ann Arbor, MI 48105.
- What is Jennifer Castillo's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Castillo is (734) 930-4020.
- Does Jennifer Castillo accept Medicare?
- Jennifer Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Castillo's NPI active?
- Yes — Jennifer Castillo's NPI (1902995863) is active in the NPPES registry as of the last update on 2019-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.