What is David Diaz's NPI number?

David Diaz's National Provider Identifier (NPI) is 1639101058, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is David Diaz's specialty?

David Diaz is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).

Where is David Diaz located?

David Diaz's practice location on file with NPPES is 13430 N Meridian St, Carmel, IN 46032-1405.

What is David Diaz's phone number?

The practice phone number listed in the NPPES registry for David Diaz is (317) 582-8810.

Does David Diaz accept Medicare?

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

Is David Diaz's NPI active?

Yes — David Diaz's NPI (1639101058) is active in the NPPES registry as of the last update on 2022-06-17.

IndividualActiveAccepts Medicare

David Diaz, MD

NPI 1639101058 · Surgery Physician · Carmel, IN

David Diaz, MD is a Surgery Physician provider in Carmel, IN (NPI 1639101058).

Provider details

NPI number: 1639101058
Entity type: Individual
Primary specialty: Surgery PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: ME46696 (FL)

Practice location

13430 N Meridian St

Suite 275

Carmel, IN 46032-1405

Phone: (317) 582-8810

Fax: (317) 582-8863

Street-level locationGet directions

Mailing address

13430 N Meridian St Ste 275

Carmel, IN 46032-1484

Specialties & taxonomies

Surgery PhysicianPrimary208600000XLicense 01062673A (IN)
Allopathic & Osteopathic Physicians
Surgery Physician208600000XLicense ME46696 (FL)
Allopathic & Osteopathic Physicians

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

Profile Score

Established profile(72/100 index)

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

Registry tenure25% of score
20 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
77 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	28	$115
Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43235	22	$102
Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223	16	$160
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	11	$126

Typical Medicare-allowed amounts for these services range $102–$160 (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.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Omeprazole	62	22
Ondansetronbrand: Ondansetron Odt	49	42
Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen	33	33
Sucralfate	23	13
Mirtazapine	14	—
Cyanocobalamin (vitamin B-12)brand: Cyanocobalamin Injection	13	—
Pantoprazole Sodium

Transparency — industry payments

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

$507 across 5 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: 2006-07-07
Last updated: 2022-06-17
Certified: 2022-06-17

Frequently asked questions

What is David Diaz's NPI number?: David Diaz's National Provider Identifier (NPI) is 1639101058, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is David Diaz's specialty?: David Diaz is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
Where is David Diaz located?: David Diaz's practice location on file with NPPES is 13430 N Meridian St, Carmel, IN 46032-1405.
What is David Diaz's phone number?: The practice phone number listed in the NPPES registry for David Diaz is (317) 582-8810.
Does David Diaz accept Medicare?: David Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is David Diaz's NPI active?: Yes — David Diaz's NPI (1639101058) is active in the NPPES registry as of the last update on 2022-06-17.

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	28	$115
Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43235	22	$102
Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223	16	$160
New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204	11	$126

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Omeprazole	62	22
Ondansetronbrand: Ondansetron Odt	49	42
Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen	33	33
Sucralfate	23	13
Mirtazapine	14	—
Cyanocobalamin (vitamin B-12)brand: Cyanocobalamin Injection	13	—
Pantoprazole Sodium

Transparency — industry payments

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

$507 across 5 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