Christy Herrera
NPI 1851940399 · Physician Assistant · Philadelphia, PA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christy Herrera is a Physician Assistant provider in Philadelphia, PA (NPI 1851940399).
Provider details
- NPI number
- 1851940399
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- MA062001 (PA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
93 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) |
|---|---|---|
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 44 | $103 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 27 | $118 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 22 | $71 |
Typical Medicare-allowed amounts for these services range $71–$118 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 4170 City AvePhiladelphia, PA 19131-1610Phone: (215) 871-6100
Registry dates
- Enumerated
- 2019-09-07
- Last updated
- 2024-04-05
- Certified
- 2024-04-02
Frequently asked questions
- What is Christy Herrera's NPI number?
- Christy Herrera's National Provider Identifier (NPI) is 1851940399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christy Herrera's specialty?
- Christy Herrera is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Christy Herrera located?
- Christy Herrera's practice location on file with NPPES is 3400 Spruce Street, Philadelphia, PA 19104-4206.
- What is Christy Herrera's phone number?
- The practice phone number listed in the NPPES registry for Christy Herrera is (904) 885-6450.
- Does Christy Herrera accept Medicare?
- Christy Herrera is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christy Herrera's NPI active?
- Yes — Christy Herrera's NPI (1851940399) is active in the NPPES registry as of the last update on 2024-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.