JOHN DIRK HOLLANDER (D.P.M.) – Foot & Ankle Surgery Podiatrist, NPI 1104822758

Foot & Ankle Surgery Podiatrist

JOHN DIRK HOLLANDER (D.P.M.) is a healthcare provider. based in Santa rosa, California. specializing in Foot & Ankle Surgery Podiatrist. They hold the professional credentials D.P.M.. They hold a License No. E2845 (CA). The NPI Number for JOHN DIRK HOLLANDER (D.P.M.) is 1104822758

Main info

Male

45 Years Of Experience

Accepts Medicare Assignment

Name

JOHN DIRK HOLLANDER (D.P.M.)

NPI

1104822758

Phone

(707) 578-1222

Address

95 MONTGOMERY DR STE 114

Enumeration Date

27 June 2005

Last Update Date

6 October 2020

Doctor Profile

Medical School Name

CALIFORNIA SCHOOL OF PODIATRIC MEDICINE

Secondary Phone

Graduation Year

1981 (45 years ago)

PAC ID

1254339468

Professional Enrollment ID

I20061127000133

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience64

Completeness75

Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for JOHN DIRK HOLLANDER (D.P.M.)

Montgomery Drive, Santa Rosa, Sonoma County, California, 95405, United States
SANTA ROSA, CA 954046617
Phone: (707) 578-1222
Fax: (707) 578-8348
Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCS	Description	Services	Beneficiaries	Medicare allowed
99213	Established patient office or other outpatient visit, 20-29 minutes	45	42	$0
11721	Removal of fingernails or toenails, 6 or more nails	23	23	$0
11719	Trimming of fingernails or toenails	21	21	$0
11720	Removal of fingernails or toenails, 1-5 nails	14	14	$0
11055	Removal of noncancer thickened skin growth, 1 growth	11	11	$0

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Insurance plans in this area (ZIP 95404)

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Provider's Procedures

JOHN DIRK HOLLANDER (D.P.M.) performs procedures in Foot & Ankle Surgery Podiatrist. See the list of HCPCS codes below.

Specialty	Practice State	HCPCS Code	Description	Service Count	Beneficiary Count
PODIATRY	CA	11056	Removal of 2 to 4 thickened skin growths	149	65
PODIATRY	CA	11720	Removal of tissue from 1 to 5 finger or toe nails	193	72
PODIATRY	CA	73630	X-ray of foot, minimum of 3 views	193	125

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Frequently asked questions

What identifier follows JOHN DIRK HOLLANDER (D.P.M.) across health systems?

The NPI 1104822758 uniquely identifies JOHN DIRK HOLLANDER (D.P.M.) in U.S. healthcare data.

Should I treat JOHN DIRK HOLLANDER (D.P.M.) as an active provider?

Patients and plans typically see JOHN DIRK HOLLANDER (D.P.M.) as active in the national extract.

What does the directory say JOHN DIRK HOLLANDER (D.P.M.) does?

Insurance directories may phrase it differently, but here JOHN DIRK HOLLANDER (D.P.M.) maps to Foot & Ankle Surgery Podiatrist. Clinical services aligned with this taxonomy classification.

What geographic area is tied to JOHN DIRK HOLLANDER (D.P.M.)?

JOHN DIRK HOLLANDER (D.P.M.) is associated with Santa Rosa, California in the same public data insurers reference.

Who maintains JOHN DIRK HOLLANDER (D.P.M.)'s record?

Providers certify NPPES data; CMS hosts the public file you are viewing.