Crystal Ajja, DO
NPI 1447814694 · Internal Medicine Physician · Rochester Hills, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal Ajja, DO is a Internal Medicine Physician provider in Rochester Hills, MI (NPI 1447814694).
Provider details
- NPI number
- 1447814694
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 5101027482 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
931 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 239 | $90 |
| 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 | 196 | $16 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 114 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 86 | $55 |
| Hemoglobin A1c Level83036 | 55 | $10 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 52 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 108 | 45 |
| Levothyroxine Sodium | 79 | 28 |
| Lisinopril | 69 | 26 |
| Losartan Potassium | 68 | 27 |
| Amlodipine Besylate | 65 | 32 |
| Prednisone | 64 | 43 |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$156 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-04-23
- Last updated
- 2024-02-10
- Certified
- 2024-02-10
Frequently asked questions
- What is Crystal Ajja's NPI number?
- Crystal Ajja's National Provider Identifier (NPI) is 1447814694, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Ajja's specialty?
- Crystal Ajja is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Crystal Ajja located?
- Crystal Ajja's practice location on file with NPPES is 1701 South Blvd E Ste 250, Rochester Hills, MI 48307-6123.
- What is Crystal Ajja's phone number?
- The practice phone number listed in the NPPES registry for Crystal Ajja is (248) 293-1002.
- Does Crystal Ajja accept Medicare?
- Crystal Ajja is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal Ajja's NPI active?
- Yes — Crystal Ajja's NPI (1447814694) is active in the NPPES registry as of the last update on 2024-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.