What is Allison Sih's NPI number?

Allison Sih's National Provider Identifier (NPI) is 1871955898, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Allison Sih's specialty?

Allison Sih is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).

Where is Allison Sih located?

Allison Sih's practice location on file with NPPES is 2999 Regent St Ste 612, Berkeley, CA 94705-2121.

What is Allison Sih's phone number?

The practice phone number listed in the NPPES registry for Allison Sih is (510) 848-1727.

Does Allison Sih accept Medicare?

Allison Sih is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Allison Sih's NPI active?

Yes — Allison Sih's NPI (1871955898) is active in the NPPES registry as of the last update on 2023-07-24.

IndividualActiveAccepts Medicare

Allison Sih, M.D.

NPI 1871955898 · Urology Physician · Berkeley, CA

Allison Sih, M.D. is a Urology Physician provider in Berkeley, CA (NPI 1871955898).

Provider details

NPI number: 1871955898
Entity type: Individual
Primary specialty: Urology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: No
License: A171979 (CA)

Practice location

2999 Regent St Ste 612

Berkeley, CA 94705-2121

Phone: (510) 848-1727

Fax: (510) 848-8224

Street-level locationGet directions

More CA providers

Mailing address

2999 Regent St Ste 612

Berkeley, CA 94705-2121

Specialties & taxonomies

Urology PhysicianPrimary208800000XLicense A171979 (CA)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(65/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
10 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
1,654 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

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)
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	354	$151
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	321	$109
Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211	185	$19
Simple Bladder Irrigation And/Or Instillation51700	100	$88
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	97	$197

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Vibegronbrand: Gemtesa	149	46
Tamsulosin Hcl	143	57
Estradiol	128	68
Finasteride	46	22
Mirabegronbrand: Myrbetriq	44	18
Tadalafil	36	—
Cephalexin	30	24

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$1,069 across 43 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2016-03-29
Last updated: 2023-07-24
Certified: 2023-07-24

Frequently asked questions

What is Allison Sih's NPI number?: Allison Sih's National Provider Identifier (NPI) is 1871955898, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Allison Sih's specialty?: Allison Sih is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
Where is Allison Sih located?: Allison Sih's practice location on file with NPPES is 2999 Regent St Ste 612, Berkeley, CA 94705-2121.
What is Allison Sih's phone number?: The practice phone number listed in the NPPES registry for Allison Sih is (510) 848-1727.
Does Allison Sih accept Medicare?: Allison Sih is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Allison Sih's NPI active?: Yes — Allison Sih's NPI (1871955898) is active in the NPPES registry as of the last update on 2023-07-24.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

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)
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	354	$151
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	321	$109
Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211	185	$19
Simple Bladder Irrigation And/Or Instillation51700	100	$88
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	97	$197

Drug

Part D claims (2024)

Beneficiaries

Vibegronbrand: Gemtesa

149

Tamsulosin Hcl

143

Estradiol

128

Finasteride

Mirabegronbrand: Myrbetriq

Tadalafil

—

Cephalexin

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$1,069 across 43 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments