What is Allison Sirakos's NPI number?

Allison Sirakos's National Provider Identifier (NPI) is 1871940650, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Allison Sirakos's specialty?

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

Where is Allison Sirakos located?

Allison Sirakos's practice location on file with NPPES is 8550 Datapoint Dr Ste 200, San Antonio, TX 78229-3440.

What is Allison Sirakos's phone number?

The practice phone number listed in the NPPES registry for Allison Sirakos is (210) 615-8308.

Does Allison Sirakos accept Medicare?

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

Is Allison Sirakos's NPI active?

Yes — Allison Sirakos's NPI (1871940650) is active in the NPPES registry as of the last update on 2024-01-19.

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Allison Sirakos, M.D.

NPI 1871940650 · Gastroenterology Physician · San Antonio, TX

Allison Sirakos, M.D. is a Gastroenterology Physician provider in San Antonio, TX (NPI 1871940650).

Provider details

NPI number: 1871940650
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: No
License: T5579 (TX)

Practice location

8550 Datapoint Dr Ste 200

San Antonio, TX 78229-3440

Phone: (210) 615-8308

Street-level locationGet directions

More TX providers

Mailing address

1211 Arizona Ash St

San Antonio, TX 78232-3408

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100XLicense T5579 (TX)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Gastroenterology · 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
410 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)
Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305	162	$33
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	107	$118
Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239	32	$76
Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342	31	$67
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	27	$160
Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Pantoprazole Sodium	32	12
Omeprazole	24	13
Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G	15	15
Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes	14	13
Lubiprostone	11	—

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Transparency — industry payments

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

$1,153 across 63 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: 2016-05-20
Last updated: 2024-01-19
Certified: 2024-01-19

Frequently asked questions

What is Allison Sirakos's NPI number?: Allison Sirakos's National Provider Identifier (NPI) is 1871940650, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Allison Sirakos's specialty?: Allison Sirakos is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
Where is Allison Sirakos located?: Allison Sirakos's practice location on file with NPPES is 8550 Datapoint Dr Ste 200, San Antonio, TX 78229-3440.
What is Allison Sirakos's phone number?: The practice phone number listed in the NPPES registry for Allison Sirakos is (210) 615-8308.
Does Allison Sirakos accept Medicare?: Allison Sirakos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Allison Sirakos's NPI active?: Yes — Allison Sirakos's NPI (1871940650) is active in the NPPES registry as of the last update on 2024-01-19.

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)
Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305	162	$33
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	107	$118
Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239	32	$76
Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342	31	$67
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	27	$160
Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Pantoprazole Sodium	32	12
Omeprazole	24	13
Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G	15	15
Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes	14	13
Lubiprostone	11	—

Transparency — industry payments

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

$1,153 across 63 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