MARIA ALEJANDRA DIAZ M.D.
NPI 1841550241
Obstetrics & Gynecology - Gynecology in Altamonte Springs, FL

Q: What is Maria Diaz's NPI number?

The NPI number for Maria Diaz is 1841550241. It was assigned to this individual provider in the NPPES registry on May 21, 2012. The provider is also known as Maria Alejandra Acosta M.D..

Q: What is Maria Diaz's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.

Q: When was this NPI record last updated?

The NPPES record for Maria Diaz was last updated on December 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 21, 2012PECOS EnrolledAccepts Medicare Assignment

89.67/100

CMS Quality Rating

809 DOUGLAS AVE, ALTAMONTE SPRINGS, FL 32714(407) 834-8111 Get Directions Write a Review

NPPES record last updated: December 15, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 15, 2025, Aug 13, 2024, Mar 6, 2024 and 2 more (5 updates tracked since 2019).

On this page

About Maria Alejandra Diaz M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARIA ALEJANDRA DIAZ M.D. (NPI 1841550241) is an individual gynecology provider in Altamonte Springs, Florida, licensed in Florida (ME126435) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Florida State University College Of Medicine (2012).

NPPES Registry Identity

NPI1841550241

Entity TypeIndividualFemale

Primary Taxonomy207VG0400X

Provider Legal NameMARIA ALEJANDRA DIAZCredential: M.D.

Location Address809 DOUGLAS AVEAltamonte Springs, FL 32714-2008

Mailing AddressPo Box 9100Belfast, ME 04915-9100 · (613) 002-4105

Phone(407) 834-8111

Sole ProprietorNo

Medical School CMSFlorida State University College Of MedicineGraduated 2012

Enumeration DateMay 21, 2012

Last NPPES UpdateDecember 15, 20255 updates tracked since enumeration

NPPES CertifiedDecember 15, 2025

✔ NPI 1841550241 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207VG0400X

License✔ Licensed in FL · ME126435

Definition

A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions. Source: National Uniform Claim Committee

809 DOUGLAS AVE, Altamonte Springs, FL 32714

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Other Names 1

Former Name (1)Maria Alejandra Acosta M.d.

Secondary Practice Locations 2

Location 11401 Lucerne TerOrlando, FL 32806-2014 · Phone (407) 841-5297 · Fax (407) 481-0182

Location 21900 Don Wickham Dr Ste 120Clermont, FL 34711-1980 · Phone (352) 241-7050 · Fax (352) 241-7035

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare, Cigna HealthCare of Florida, Inc., Florida Blue (BlueCross BlueShield FL) and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Maria Alejandra Diaz M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID42455701

PECOS Enrollment IDI20210526001999

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Maria Diaz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Florida Woman Care, LLC

84 mi

Obstetrics & Gynecology

4010 W BOY SCOUT BLVD STE 500
Tampa, FL 33607

Reassigned Medicare billing, Florida enrollment
802 clinicians in this Medicare group

NPI 1386823243 (561) 300-2410

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101

This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32714 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$130.04 typical visit price

range $56.00 – $171.84

Typical copayment $32.51 (range $14.00 – $42.96)

Most-billed visit code 99204

Established Patient

$70.04 typical visit price

range $17.57 – $139.16

Typical copayment $17.51 (range $4.39 – $34.79)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

89.67/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

97.86

Promoting Interoperability

100

Improvement Activities

Cost

67.71

Reported Quality Measures

Breast Cancer Screening

63%122 patients3/55-star benchmark: 93%

Cervical Cancer Screening

78%579 patients4/55-star benchmark: 98%

Closing the Referral Loop: Receipt of Specialist Report

55%31 patients3/55-star benchmark: 87%

Colorectal Cancer Screening

34%182 patients2/55-star benchmark: 88%

Documentation of Current Medications in the Medical Record

85%1,062 patients4/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

25%466 patients2/55-star benchmark: 98%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

46%913 patients4/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients screened: 68% · 555 patients

66%555 patients

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

FLORIDA WOMAN CARE, LLC

Obstetrics & Gynecology

809 DOUGLAS AVE
ALTAMONTE SPRINGS, FL 32714

Seminole County (407) 834-8111

ENID BERRIOS LLC

Physical Medicine & Rehabilitation

809 DOUGLAS AVE
ALTAMONTE SPRINGS, FL 32714

Seminole County (407) 682-7275

LUIS E MORALES MDPA FAMILY PRACTICE

Preferred Provider Organization

809 DOUGLAS AVE
ALTAMONTE SPRINGS, FL 32714

Seminole County (407) 682-7272

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Maria Diaz's NPI number?

The NPI number for Maria Diaz is 1841550241. It was assigned to this individual provider in the NPPES registry on May 21, 2012. The provider is also known as Maria Alejandra Acosta M.D..

Where is Maria Diaz located?

Maria Diaz practices at 809 Douglas Ave, Altamonte Springs, FL 32714. The listed phone number is (407) 834-8111.

What is Maria Diaz's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.

Is Maria Diaz enrolled in Medicare?

Yes. Maria Diaz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Maria Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Diaz reassigns Medicare benefits to Florida Woman Care, LLC (Tampa, FL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Maria Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Maria Diaz accept?

Health plans from Cigna HealthCare of Florida, Inc., Cigna Healthcare, Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company) and Health First Commercial Plans, Inc. and 4 other insurers list Maria Diaz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Maria Diaz was last updated on December 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.