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DR. DEMITRIA DIANN HERNANDEZ M.D.
NPI 1801034194
Internal Medicine in New York, NY

Active since January 26, 2009PECOS EnrolledAccepts Medicare Assignment
97.54/100
CMS Quality Rating
170 WILLIAM ST, NEW YORK, NY 10038(212) 312-5780(212) 312-5795 Get Directions Write a Review

NPPES record last updated: April 15, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 15, 2026, Oct 4, 2021 (2 updates tracked since 2021).

About Dr. Demitria Diann Hernandez M.d. NPPES

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

DR. DEMITRIA DIANN HERNANDEZ M.D. (NPI 1801034194) is an individual internal medicine provider in New York, New York, licensed in Arizona (50757) and active in the NPI registry since January 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1801034194
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. DEMITRIA DIANN HERNANDEZCredential: M.D.
Location Address170 WILLIAM STNew York, NY 10038-2612
Mailing Address3269 N Stockton Hill RdKingman, AZ 86409-3619 · (928) 757-2101 · Fax (928) 681-8578
Phone(212) 312-5780
Fax(212) 312-5795
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateJanuary 26, 2009
Last NPPES UpdateApril 15, 20262 updates tracked since enumeration
NPPES CertifiedApril 15, 2026
✔ NPI 1801034194 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in AZ · 50757✔ Licensed in NY · 262288-1
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License 50757 (AZ)
170 WILLIAM ST, New York, NY 10038
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, UnitedHealthcare.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

Dr. Demitria Diann Hernandez 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 ID6800069824
PECOS Enrollment IDI20150806010136
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 Reassignments

3

Medicare enrollment records show Demitria Hernandez reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Apogee Medical Group Inc
2,140 mi
Internal Medicine
2525 E CAMELBACK RD, #1100
Phoenix, AZ 85016
  • Reassigned Medicare billing, Arizona enrollment
  • 240 clinicians in this Medicare group
NPI 1205883725 (602) 778-3600
Kingman Healthcare, Inc
2,199 mi
General Acute Care Hospital
3269 N STOCKTON HILL RD
Kingman, AZ 86409
  • Reassigned Medicare billing, Arizona enrollment
  • 418 clinicians in this Medicare group
NPI 1265423917 (928) 681-8655
Hrmc, LLC
2,234 mi
Nurse Practitioner
1851 MESQUITE AVE, SUITE 202
Lake Havasu City, AZ 86403
  • Reassigned Medicare billing, Arizona enrollment
  • 70 clinicians in this Medicare group
NPI 1891155974 (928) 854-0094

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 6

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
358 services172 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
142 services140 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
130 services69 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
37 services37 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
24 services24 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
16 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10038 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
$150.24 typical visit price
range $65.69 – $198.19
Typical copayment $37.56 (range $16.42 – $49.54)
Most-billed visit code 99204
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
Most-billed visit code 99214
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.

97.54/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality98.58
Improvement Activities40
Cost85.55

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
4 suppliers42 claims42 services$16.84 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
4 suppliers44 claims44 services$83.20 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

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

KURT BELEN RN
Nurse Anesthetist, Certified Registered
170 WILLIAM ST
NEW YORK, NY 10038
New York County (313) 410-1988
MEGAN O'NEILL DPT
Physical Therapist
170 WILLIAM ST, REHAB DEPARTMENT
NEW YORK, NY 10038
New York County (212) 312-5335
DOWNTOWN NUCLEAR CARDIOLOGY, P.C.
Nuclear Medicine (Nuclear Cardiology)
170 WILLIAM ST, SUITE 814
NEW YORK, NY 10038
New York County (212) 312-5000
BRUCE LOGAN MD
Internal Medicine
170 WILLIAM ST, FL 7
NEW YORK, NY 10038
New York County (212) 312-5000
DR. SIMIN SOLTANI FRISK M.D.
Anesthesiology
170 WILLIAM ST, SUITE 288 WEILL CORNELL MEDICINE LMH,
NEW YORK, NY 10038
New York County (212) 312-5243
WEILL MEDICAL COLLEGE OF CORNELL UNIVERSITY
Internal Medicine
170 WILLIAM ST
NEW YORK, NY 10038
New York County (212) 590-5741
MR. PAUL JOSEPH GAGLIO JR. PHYSICIAN ASSISTANT
Physician Assistant (Medical)
170 WILLIAM ST
NEW YORK, NY 10038
New York County (212) 312-5746
ALYSSA LYNNE SANDGRUND M.S.PA-C
Physician Assistant
170 WILLIAM ST
NEW YORK, NY 10038
New York County (212) 312-5400

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 Demitria Hernandez's NPI number?

The NPI number for Demitria Hernandez is 1801034194. It was assigned to this individual provider in the NPPES registry on January 26, 2009.

Where is Demitria Hernandez located?

Demitria Hernandez practices at 170 William St, New York, NY 10038. The listed phone number is (212) 312-5780.

What is Demitria Hernandez's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Demitria Hernandez enrolled in Medicare?

Yes. Demitria Hernandez 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 organizations bill Medicare for Demitria Hernandez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Demitria Hernandez reassigns Medicare benefits to 3 organizations: Apogee Medical Group Inc (Phoenix, AZ), Kingman Healthcare, Inc (Kingman, AZ) and Hrmc, LLC (Lake Havasu City, AZ). Each 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 Demitria Hernandez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Demitria Hernandez accept?

Health plans from Blue Cross Blue Shield of Arizona and UnitedHealthcare list Demitria Hernandez 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 Demitria Hernandez was last updated on April 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.