DR. ANN S MERCER M.D.
NPI 1811913502
Internal Medicine in Las Cruces, NM

Q: What is Ann Mercer's NPI number?

The NPI number for Ann Mercer is 1811913502. It was assigned to this individual provider in the NPPES registry on July 14, 2006.

Q: What is Ann Mercer's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Ann Mercer was last updated on March 15, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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 July 14, 2006PECOS EnrolledAccepts Medicare Assignment

88.55/100

CMS Quality Rating

2801 MISSOURI AVE, SUITE 12, LAS CRUCES, NM 88011(575) 522-6900 Get Directions Write a Review

NPPES record last updated: March 15, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. Ann S Mercer M.d. NPPES

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

DR. ANN S MERCER M.D. (NPI 1811913502) is an individual internal medicine provider in Las Cruces, New Mexico, licensed in New Mexico (84-79) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Memorial Medical Center, and is a graduate of University Of Puerto Rico School Of Medicine (1978).

NPPES Registry Identity

NPI1811913502

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDR. ANN S MERCERCredential: M.D.

Location Address2801 MISSOURI AVE, SUITE 12Las Cruces, NM 88011-5075

Mailing Address2801 Missouri Ave, Suite 12Las Cruces, NM 88011-5075 · (575) 522-6900

Phone(575) 522-6900

Sole ProprietorYes

Medical School CMSUniversity Of Puerto Rico School Of MedicineGraduated 1978

Enumeration DateJuly 14, 2006

Last NPPES UpdateMarch 15, 2022

NPPES CertifiedMarch 1, 2022

✔ NPI 1811913502 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in NM · 84-79

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.

2801 MISSOURI AVE, Las Cruces, NM 88011

Open in Google Maps ↗

Other Identifiers 1

Medicaid33407NM

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ann S Mercer 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 ID5193752277

PECOS Enrollment IDI20050720000494

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.

Areas of Expertise CMS Part B claims 20

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

494 services150 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.

448 services46 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

311 services113 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

256 services225 patients

Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 99348

An established patient home visit is a 25-minute appointment where a healthcare provider visits you at your home. This service is for patients who have previously been seen by the provider. It includes a check-up and discussion about your health concerns.

164 services32 patients

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309

A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.

101 services16 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

81 services65 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

81 services60 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

80 services80 patients

Removal of tissue from wound, 20.0 sq cm or less 97597

This procedure involves the careful removal of damaged or infected tissue from a wound that's 20.0 square cm or less. It's done to promote healing and prevent further infection. The process is carried out under local anesthesia, ensuring minimal discomfort.

70 services15 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.

62 services42 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.

60 services40 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

57 services27 patients

Blood glucose (sugar) test performed by hand-held instrument 82962

A blood glucose test uses a handheld device to measure the amount of sugar in your blood. A small prick on your finger allows a drop of blood to be placed on a test strip, which is then read by the device. This helps monitor and manage diabetes effectively.

49 services27 patients

Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 99349

An established patient home visit is a medical appointment conducted at your home, typically lasting around 40 minutes. This service is ideal for patients who may find it difficult to travel to a healthcare facility. During this visit, a healthcare professional will evaluate your health status, manage your care, and answer any health-related questions you may have.

43 services23 patients

Stool analysis for blood to screen for colon tumors 82270

A stool analysis for blood is a non-invasive procedure used to check for the presence of hidden blood in your stool. This can be an early sign of colon tumors. The test involves collecting a small sample of stool at home and sending it to a lab for analysis.

39 services39 patients

Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes 99347

An established patient home visit is a service where a healthcare professional visits your home for a 15-minute check-up. It's designed for patients who have previously seen the professional. The visit may include basic health assessments and discussions about your ongoing care.

34 services17 patients

Manual urinalysis test with examination using microscope, non-automated 81000

A manual urinalysis test involves studying a urine sample under a microscope. This non-automated method helps identify any abnormal substances present. It's a useful tool for detecting potential health concerns early. The process is simple and non-invasive.

32 services22 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

30 services21 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

21 services17 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Memorial Medical Center

Acute Care Hospitals · Las Cruces, NM

1/5 CMS rating

OwnershipProprietary

CMS Certification Number320018

Location2450 South Telshor BlvdLas Cruces, NM 88011 · Dona Ana County

Emergency services Birthing friendly

Mountain View Regional Medical Center

Acute Care Hospitals · Las Cruces, NM

1/5 CMS rating

OwnershipProprietary

CMS Certification Number320085

Location4311 East Lohman AvenueLas Cruces, NM 88011 · Dona Ana County

Emergency services Birthing friendly

Three Crosses Regional Hospital LLC

Acute Care Hospitals · Las Cruces, NM

OwnershipProprietary

CMS Certification Number320091

Location2560 Samaritan DriveLas Cruces, NM 88001 · Dona Ana County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 88011 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

$126.21 typical visit price

range $54.26 – $166.80

Typical copayment $31.55 (range $13.56 – $41.70)

Most-billed visit code 99204

Established Patient

$96.38 typical visit price

range $17.00 – $135.35

Typical copayment $24.09 (range $4.25 – $33.83)

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.

88.55/100

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

Individually scored

Quality

76.2

Improvement Activities

Cost

78.43

Referred Medical Equipment & Supplies CMS DME claims 10

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

8 suppliers34 claims174 services$6.61 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

4 suppliers18 claims35 services$1.08 avg. paid by Medicare

Insertion tray with drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.) A4314

DME-Orthotic Devices · category DF000N

1 supplier11 claims11 services$20.63 avg. paid by Medicare

Urinary catheter anchoring device, adhesive skin attachment, each A4333

DME-Orthotic Devices · category DF000N

1 supplier11 claims132 services$1.94 avg. paid by Medicare

Urinary catheter anchoring device, leg strap, each A4334

DME-Orthotic Devices · category DF000N

1 supplier11 claims11 services$4.24 avg. paid by Medicare

Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357

DME-Orthotic Devices · category DF000N

2 suppliers14 claims20 services$7.58 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Leave this field empty

Other Providers at the Same Location NPPES 17

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

KATHLEEN ANN LEMONE LICENSED MIDWIFE

Midwife

2801 MISSOURI AVE, SUITE 12
LAS CRUCES, NM 88011

Doña Ana County (505) 522-6900

NM INTEGRATED SOLUTIONS

Clinic/Center (Multi-Specialty)

2801 MISSOURI AVE
LAS CRUCES, NM 88011

Doña Ana County (575) 915-1338

HOME SLEEP SPECTRUMS

Clinic/Center (Sleep Disorder Diagnostic)

2801 MISSOURI AVE, SUITE 9
LAS CRUCES, NM 88011

Doña Ana County (575) 373-8415

LIZA MARIE BAUMAN

Community Health Worker

2801 MISSOURI AVE
LAS CRUCES, NM 88011

Doña Ana County (575) 915-1338

KATHERINE EMERICK CNP

Nurse Practitioner (Family)

2801 MISSOURI AVE, SUITE # 12
LAS CRUCES, NM 88011

Doña Ana County (575) 649-9433

HENRY GARCIA

Community Health Worker

2801 MISSOURI AVE
LAS CRUCES, NM 88011

Doña Ana County (575) 915-1338

TLC MEDICAL CLINIC LLC

Health Maintenance Organization

2801 MISSOURI AVE, SUITE 7
LAS CRUCES, NM 88011

Doña Ana County (575) 373-8415

HERNAN CIUDAD

Pediatrics

2801 MISSOURI AVE, SUITE 27
LAS CRUCES, NM 88011

Doña Ana County (505) 521-0630

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 Ann Mercer's NPI number?

The NPI number for Ann Mercer is 1811913502. It was assigned to this individual provider in the NPPES registry on July 14, 2006.

Where is Ann Mercer located?

Ann Mercer practices at 2801 Missouri Ave Suite 12, Las Cruces, NM 88011. The listed phone number is (575) 522-6900.

What is Ann Mercer's specialty?

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

Is Ann Mercer enrolled in Medicare?

Yes. Ann Mercer 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.

What insurance does Ann Mercer accept?

Health plans from Blue Cross and Blue Shield of Texas list Ann Mercer 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.

Is Ann Mercer affiliated with any hospitals?

According to CMS data, Ann Mercer is affiliated with Memorial Medical Center, Mountain View Regional Medical Center and Three Crosses Regional Hospital LLC.

When was this NPI record last updated?

The NPPES record for Ann Mercer was last updated on March 15, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.