DR. MANJARI NATHAN M.D.
NPI 1033386503
Internal Medicine - Pulmonary Disease in Walnut Creek, CA

Q: What is Manjari Nathan's NPI number?

The NPI number for Manjari Nathan is 1033386503. It was assigned to this individual provider in the NPPES registry on May 13, 2008.

Q: What is Manjari Nathan's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Manjari Nathan was last updated on March 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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 13, 2008PECOS EnrolledAccepts Medicare Assignment

91.09/100

CMS Quality Rating

2637 SHADELANDS DR, WALNUT CREEK, CA 94598(925) 944-0166(925) 944-6355 Get Directions Write a Review

NPPES record last updated: March 3, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 3, 2025, Oct 16, 2019 (2 updates tracked since 2019).

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About Dr. Manjari Nathan M.d. NPPES

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

DR. MANJARI NATHAN M.D. (NPI 1033386503) is an individual pulmonary disease provider in Walnut Creek, California, licensed in California (A80974) and active in the NPI registry since May 2008. She is enrolled in Medicare PECOS, maintains a secondary practice location in Walnut Creek, and is a graduate of Other (1998).

NPPES Registry Identity

NPI1033386503

Entity TypeIndividualFemale

Primary Taxonomy207RP1001X

Provider Legal NameDR. MANJARI NATHANCredential: M.D.

Location Address2637 SHADELANDS DRWalnut Creek, CA 94598-2512

Mailing Address2637 Shadelands DrWalnut Creek, CA 94598-2512 · (925) 944-0166 · Fax (925) 944-6355

Phone(925) 944-0166

Fax(925) 944-6355

Sole ProprietorNo

Medical School CMSOtherGraduated 1998

Enumeration DateMay 13, 2008

Last NPPES UpdateMarch 3, 20252 updates tracked since enumeration

NPPES CertifiedMarch 3, 2025

✔ NPI 1033386503 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in CA · A80974

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 A80974 (CA)

Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License A80974 (CA)

2637 SHADELANDS DR, Walnut Creek, CA 94598

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Secondary Practice Location 1

Location 1130 La Casa Via, Bldg.#2, Suite 208Walnut Creek, CA 94598-3045 · Phone (925) 944-0166 · Fax (925) 944-6355

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. Manjari Nathan 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 ID9335106053

PECOS Enrollment IDI20041214001193

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 23

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 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.

266 services141 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.

263 services145 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.

202 services107 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.

192 services131 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.

141 services91 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

112 services108 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

111 services107 patients

Critical care, each additional 30 minutes 99292

Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.

111 services66 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

96 services93 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.

71 services70 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

46 services36 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

30 services30 patients

Sleep study in sleep lab (6 years or older) 95810

A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.

28 services27 patients

Evaluation of use of breathing device 94664

The evaluation of a breathing device involves checking how effectively you're using it to manage your respiratory condition. It assesses the device's fit, your comfort, and your technique to ensure optimal results.

25 services24 patients

Ultrasonic guidance for blood vessel access 76937

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

22 services17 patients

Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556

This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.

18 services16 patients

Irrigation and suction of lung airways to obtain cells using an endoscope 31624

This is a procedure where a thin, flexible tube called an endoscope is inserted through your mouth into the lungs. A small amount of saline is then introduced to wash the airways. The fluid, along with cells from the lung, is suctioned back for analysis.

17 services15 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

17 services16 patients

Aspiration of fluid from chest cavity using imaging guidance 32555

This procedure, known as a thoracentesis, involves removing fluid from the space between the lungs and chest wall, called the pleural space. It's performed under imaging guidance to ensure precision. It can help diagnose conditions or relieve symptoms like shortness of breath.

15 services15 patients

Test for exercise-induced lung stress 94618

An exercise-induced lung stress test assesses how your lungs respond to physical activity. During the test, you'll exercise on a treadmill or stationary bike while your heart rate, breathing, blood pressure, and oxygen levels are monitored. This helps identify any abnormal lung responses to exercise.

14 services14 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

14 services12 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.

14 services13 patients

Sleep study in sleep lab with continuous airway pressure (6 years or older) 95811

A sleep study in a sleep lab with continuous airway pressure is a test for individuals aged 6 and above. It monitors your sleep patterns to check for disorders like sleep apnea. Continuous airway pressure helps keep your airways open while you sleep, improving your breathing.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94598 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

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.

91.09/100

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

Individually scored

Quality

75.75

Promoting Interoperability

100

Improvement Activities

Reported Quality Measures

Breast Cancer Screening

91%115 patients4/55-star benchmark: 93%

Cervical Cancer Screening

68%71 patients3/55-star benchmark: 98%

Colorectal Cancer Screening

75%224 patients4/55-star benchmark: 88%

Controlling High Blood Pressure

75%135 patients4/55-star benchmark: 91%

Diabetes: Eye Exam

25%32 patients2/55-star benchmark: 100%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

34%32 patients3/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

96%959 patients4/55-star benchmark: 100%

e-Prescribing

100%217 patients5/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

57%353 patients3/55-star benchmark: 100%

HIV Screening

32%165 patients3/55-star benchmark: 60%

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

69%485 patients3/55-star benchmark: 98%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

48%314 patients2/55-star benchmark: 97%

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

Patients screened: 95% · 203 patients

95%203 patients

Provide Patients Electronic Access to Their Health Information

99%157 patients4/55-star benchmark: 100%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

75%174 patients3/55-star benchmark: 91%

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 28

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

Moisture exchanger, disposable, for use with invasive mechanical ventilation A4483

DME-Orthotic Devices · category DF000N

1 supplier17 claims503 services$4.04 avg. paid by Medicare

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

15 suppliers141 claims141 services$33.43 avg. paid by Medicare

Tracheal suction catheter, closed system, each A4605

DME-Other DME · category DE000N

1 supplier12 claims360 services$15.85 avg. paid by Medicare

Tracheostomy, inner cannula A4623

DME-Orthotic Devices · category DF000N

2 suppliers20 claims918 services$5.19 avg. paid by Medicare

Oropharyngeal suction catheter, each A4628

DME-Other DME · category DE000N

2 suppliers15 claims56 services$3.52 avg. paid by Medicare

Tracheostomy care kit for established tracheostomy A4629

DME-Orthotic Devices · category DF000N

1 supplier12 claims360 services$4.37 avg. paid by Medicare

Canister, disposable, used with suction pump, each A7000

DME-Other DME · category DE000N

2 suppliers16 claims51 services$6.58 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

8 suppliers43 claims43 services$75.40 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

9 suppliers44 claims100 services$28.88 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

13 suppliers141 claims703 services$16.12 avg. paid by Medicare

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

5 suppliers18 claims74 services$14.12 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

14 suppliers152 claims152 services$46.17 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

14 suppliers117 claims117 services$16.49 avg. paid by Medicare

Chinstrap used with positive airway pressure device A7036

DME-Other DME · category DE001N

7 suppliers23 claims23 services$8.43 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

6 suppliers39 claims39 services$12.37 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

15 suppliers190 claims991 services$1.80 avg. paid by Medicare

Filter, non disposable, used with positive airway pressure device A7039

DME-Other DME · category DE001N

5 suppliers23 claims23 services$5.56 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

14 suppliers72 claims72 services$11.47 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

3 suppliers53 claims53 services$14.70 avg. paid by Medicare

Home ventilator, any type, used with invasive interface, (e.g., tracheostomy tube) E0465

DME-Other DME · category DE005N

2 suppliers17 claims22 services$787.24 avg. paid by Medicare

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

6 suppliers151 claims151 services$787.03 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0470

DME-Other DME · category DE001N

9 suppliers84 claims84 services$74.22 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

8 suppliers22 claims22 services$120.32 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

3 suppliers32 claims32 services$3.35 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

9 suppliers184 claims187 services$28.58 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 suppliers81 claims84 services$76.22 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

1 supplier11 claims11 services$38.25 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

1 supplier11 claims11 services$33.94 avg. paid by Medicare

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

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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.

MICHAELA STRAZNICKA M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

2637 SHADELANDS DR
WALNUT CREEK, CA 94598

Contra Costa County (925) 932-6330

DR. CYNTHIA M. MULLEN M.D.

Internal Medicine (Gastroenterology)

2637 SHADELANDS DR
WALNUT CREEK, CA 94598

Contra Costa County (925) 322-2372

JULIA ALEXA ONDARZA PA-C

Physician Assistant

2637 SHADELANDS DR
WALNUT CREEK, CA 94598

Contra Costa County (925) 430-5335

BAY AREA SURGICAL SPECIALISTS INC A MEDICAL CORPORATION

Clinic/Center (Magnetic Resonance Imaging (MRI))

2637 SHADELANDS DR
WALNUT CREEK, CA 94598

Contra Costa County (925) 329-3710

SRUTHI SAKAMURI MD

Obstetrics & Gynecology

2637 SHADELANDS DR
WALNUT CREEK, CA 94598

Contra Costa County (925) 945-6600

ANITA ANAND NP

Nurse Practitioner (Family)

2637 SHADELANDS DR
WALNUT CREEK, CA 94598

Contra Costa County (925) 944-0166

DR. ALI KHAVARI DPM

Podiatrist (Foot & Ankle Surgery)

2637 SHADELANDS DR
WALNUT CREEK, CA 94598

Contra Costa County (925) 464-1982

CAITLIN MILLER CNM

Midwife

2637 SHADELANDS DR
WALNUT CREEK, CA 94598

Contra Costa County (925) 945-6600

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 Manjari Nathan's NPI number?

The NPI number for Manjari Nathan is 1033386503. It was assigned to this individual provider in the NPPES registry on May 13, 2008.

Where is Manjari Nathan located?

Manjari Nathan practices at 2637 Shadelands Dr, Walnut Creek, CA 94598. The listed phone number is (925) 944-0166.

What is Manjari Nathan's specialty?

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

Is Manjari Nathan enrolled in Medicare?

Yes. Manjari Nathan 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.

When was this NPI record last updated?

The NPPES record for Manjari Nathan was last updated on March 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.