1. Home
  2. Directory
  3. Texas
  4. Pasadena
  5. Internal Medicine
  6. NPI Profile

DR. LOUIS MARC HAMER MD
NPI 1326083288
Internal Medicine - Pulmonary Disease in Pasadena, TX

Active since June 17, 2006PECOS EnrolledAccepts Medicare Assignment
5010 CRENSHAW, SUITE #100, PASADENA, TX 77505(832) 399-0399(832) 399-0398 Get Directions Write a Review

NPPES record last updated: February 21, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Louis Marc Hamer Md NPPES

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

DR. LOUIS MARC HAMER MD (NPI 1326083288) is an individual pulmonary disease provider in Pasadena, Texas, licensed in Texas (J3113) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Hca Houston Healthcare Southeast, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (1988).

NPPES Registry Identity

NPI1326083288
Entity TypeIndividualMale
Primary Taxonomy207RP1001X
Provider Legal NameDR. LOUIS MARC HAMERCredential: MD
Location Address5010 CRENSHAW, SUITE #100Pasadena, TX 77505
Mailing Address5010 Crenshaw Rd Suite, Suite #100Pasadena, TX 77505
Phone(832) 399-0399
Fax(832) 399-0398
Sole ProprietorNo
Medical School CMSPerelman School Of Med At The University Of PennsylvaniaGraduated 1988
Enumeration DateJune 17, 2006
Last NPPES UpdateFebruary 21, 2022
NPPES CertifiedFebruary 21, 2022
✔ NPI 1326083288 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
License✔ Licensed in TX · J3113
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License J3113 (TX)
5010 CRENSHAW, Pasadena, TX 77505
Open in Google Maps ↗

Other Identifiers 2

Medicaid122033705TX
Other8G2112TX · Blue Cross/blue Shield

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.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. Louis Marc Hamer Md 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 ID6901860642
PECOS Enrollment IDI20041112000978
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 8

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 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.
508 services125 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.
104 services33 patients
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.
102 services60 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.
101 services93 patients
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.
70 services38 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
17 services17 patients

Hospital Affiliations CMS Care Compare 3

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

Hca Houston Healthcare Southeast

Acute Care Hospitals · Pasadena, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450097
Location4000 Spencer HwyPasadena, TX 77504 · Harris County
Emergency services Birthing friendly

Chi St Luke's Health Baylor College Of Medicine Me

Acute Care Hospitals · Houston, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number450193
Location6720 Bertner Ave, Ste Mc1-266Houston, TX 77030 · Harris County
Emergency services

St Luke's Patients Medical Center

Acute Care Hospitals · Pasadena, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670031
Location4600 East Sam Houston Parkway SouthPasadena, TX 77505 · Harris County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77505 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
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
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.

Reported Quality Measures

e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
38%821 patients1/55-star benchmark: 99%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
57%468 patients1/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
0%378 patients1/55-star benchmark: 97%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
90%378 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
0%378 patients1/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
2%378 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.

Referred Medical Equipment & Supplies CMS DME claims 15

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

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
6 suppliers20 claims20 services$31.18 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
5 suppliers14 claims82 services$15.01 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
6 suppliers18 claims18 services$43.81 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
6 suppliers15 claims15 services$13.44 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
6 suppliers22 claims130 services$1.52 avg. paid by Medicare
Portable oxygen contents, gaseous, 1 month's supply = 1 unit E0443
DME-Oxygen and Supplies · category DC000N
1 supplier11 claims11 services$43.82 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Louis Hamer's NPI number?

The NPI number for Louis Hamer is 1326083288. It was assigned to this individual provider in the NPPES registry on June 17, 2006.

Where is Louis Hamer located?

Louis Hamer practices at 5010 Crenshaw Suite #100, Pasadena, TX 77505. The listed phone number is (832) 399-0399.

What is Louis Hamer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Louis Hamer enrolled in Medicare?

Yes. Louis Hamer 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 Louis Hamer accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 4 other insurers list Louis Hamer 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 Louis Hamer affiliated with any hospitals?

According to CMS data, Louis Hamer is affiliated with Hca Houston Healthcare Southeast, Chi St Luke's Health Baylor College Of Medicine Me and St Luke's Patients Medical Center.

When was this NPI record last updated?

The NPPES record for Louis Hamer was last updated on February 21, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.