Kristin Gershfield, MD
NPI 1124030614 · Hospitalist Physician · Redwood City, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kristin Gershfield, MD is a Hospitalist Physician provider in Redwood City, CA (NPI 1124030614).
Provider details
- NPI number
- 1124030614
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A74001 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
244 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 117 | $131 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 61 | $130 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 39 | $192 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 27 | $88 |
Typical Medicare-allowed amounts for these services range $88–$192 (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
Registry dates
- Enumerated
- 2006-08-12
- Last updated
- 2017-10-03
Frequently asked questions
- What is Kristin Gershfield's NPI number?
- Kristin Gershfield's National Provider Identifier (NPI) is 1124030614, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kristin Gershfield's specialty?
- Kristin Gershfield is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Kristin Gershfield located?
- Kristin Gershfield's practice location on file with NPPES is 170 Alameda De Las Pulgas, Redwood City, CA 94062-2751.
- What is Kristin Gershfield's phone number?
- The practice phone number listed in the NPPES registry for Kristin Gershfield is (650) 369-5811.
- Does Kristin Gershfield accept Medicare?
- Kristin Gershfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kristin Gershfield's NPI active?
- Yes — Kristin Gershfield's NPI (1124030614) is active in the NPPES registry as of the last update on 2017-10-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.