Crystal May, D.O.
NPI 1235475518 · Diagnostic Radiology Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal May, D.O. is a Diagnostic Radiology Physician provider in Sacramento, CA (NPI 1235475518).
Provider details
- NPI number
- 1235475518
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A15363 (CA)
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
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,247 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 726 | $9 |
| X-Ray of Chest, 2 Views71046 | 182 | $12 |
| Screening Mammography77067 | 142 | $40 |
| Ct Scan Head Or Brain Without Contrast70450 | 128 | $44 |
| X-Ray of Abdomen, 1 View74018 | 109 | $10 |
| Screening 3d Breast Mammography77063 | 104 | $31 |
| Ct Scan of Abdomen and Pelvis With Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-12-14
- Last updated
- 2017-04-26
Frequently asked questions
- What is Crystal May's NPI number?
- Crystal May's National Provider Identifier (NPI) is 1235475518, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal May's specialty?
- Crystal May is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Crystal May located?
- Crystal May's practice location on file with NPPES is 2315 Stockton Blvd, Sacramento, CA 95817-2201.
- What is Crystal May's phone number?
- The practice phone number listed in the NPPES registry for Crystal May is (916) 734-9200.
- Does Crystal May accept Medicare?
- Crystal May is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal May's NPI active?
- Yes — Crystal May's NPI (1235475518) is active in the NPPES registry as of the last update on 2017-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.