Provider Profile
Based in Concord, CA, John A. Ambrosino, D.P.M. is listed in the NPI registry under podiatry — foot & ankle surgery. Medicare claims data shows John provided 330 services to 105 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, removal of fingernails or toenails, 6 or more nails, and follow-up training in the use of orthopedic device or artificial arm, leg and/or trunk, each 15 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
2485 HIGH SCHOOL AVE SUITE #123-EAST
Concord, CA 94520
Within Podiatry — Foot & Ankle Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
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Bone
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Deformities
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Diabetes & circulation
General
Infections
Injuries
Injury
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Most searched procedures
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330 services · 105 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of fingernails or toenails, 6 or more nails | Procedure | 11721 |
63 | Less often than most peers in Podiatry — Foot & Ankle Surgery |
| Follow-up training in the use of orthopedic device or artificial arm, leg and/or trunk, each 15 minutes | Treatment | 97763 |
37 | Too few peers to compare |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
215 | As often as other peers in Podiatry — Foot & Ankle Surgery |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
15 | As often as other peers in Podiatry — Foot & Ankle Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
John A. Ambrosino is a podiatry in Concord, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Podiatry — Foot & Ankle Surgery”.
NPI registry
John A. Ambrosino is listed at 2485 High School Ave Suite #123-East, Concord, CA 94520. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (925) 827-9966. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
John A. Ambrosino's National Provider Identifier is 1659462273. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
John A. Ambrosino has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
According to Medicare billing data, John A. Ambrosino performs procedures including removal of fingernails or toenails, 6 or more nails; provides treatments such as follow-up training in the use of orthopedic device or artificial arm, leg and/or trunk, each 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by John A. Ambrosino. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.