Denise John, M.D.
NPI 1033232319 · Ophthalmology Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Denise John, M.D. is a Ophthalmology Physician provider in Ann Arbor, MI (NPI 1033232319).
Provider details
- NPI number
- 1033232319
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
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
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
744 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 183 | $66 |
| Exam of Visual Field With Extended Testing92083 | 171 | $26 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 133 | $96 |
| Imaging of Optic Nerve92133 | 121 | $21 |
| 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 | 96 | $16 |
| Exam of the Internal Drainage System of Eye92020 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 190 | 89 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 180 | 69 |
| Brimonidine Tartrate | 103 | 45 |
| Timolol Maleate | 75 | 37 |
| Dorzolamide Hcl | 54 | 24 |
| Prednisolone Acetate | 50 | 37 |
| Pilocarpine Hcl | 29 | 15 |
| Ketorolac Tromethamine |
Practice location
Mailing address
Additional practice locations (1)
- 2215 Fuller RdAnn Arbor, MI 48105-2303Phone: (734) 845-6047
Registry dates
- Enumerated
- 2007-04-09
- Last updated
- 2026-03-16
- Certified
- 2026-03-16
Frequently asked questions
- What is Denise John's NPI number?
- Denise John's National Provider Identifier (NPI) is 1033232319, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Denise John's specialty?
- Denise John is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Denise John located?
- Denise John's practice location on file with NPPES is 1000 Wall Street, Ann Arbor, MI 48105-1912.
- What is Denise John's phone number?
- The practice phone number listed in the NPPES registry for Denise John is (734) 764-4190.
- Does Denise John accept Medicare?
- Denise John is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Denise John's NPI active?
- Yes — Denise John's NPI (1033232319) is active in the NPPES registry as of the last update on 2026-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.