DR. ALLEN L COHN MD
NPI 1316921976
Internal Medicine - Hematology & Oncology in Denver, CO

Q: What is Allen Cohn's NPI number?

The NPI number for Allen Cohn is 1316921976. It was assigned to this individual provider in the NPPES registry on December 6, 2005.

Q: What is Allen Cohn's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Allen Cohn was last updated on February 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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 December 06, 2005PECOS EnrolledAccepts Medicare Assignment

97.58/100

CMS Quality Rating

1800 WILLIAMS ST, SUITE 200, DENVER, CO 80218(303) 388-4876(303) 285-5097 Get Directions Write a Review

NPPES record last updated: February 17, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 17, 2025, Jul 14, 2021, Feb 25, 2016 (3 updates tracked since 2016).

On this page

About Dr. Allen L Cohn Md NPPES

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

DR. ALLEN L COHN MD (NPI 1316921976) is an individual hematology & oncology provider in Denver, Colorado, licensed in Colorado (DR.0027525) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Maryland School Of Medicine (1985).

NPPES Registry Identity

NPI1316921976

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameDR. ALLEN L COHNCredential: MD

Location Address1800 WILLIAMS ST, SUITE 200Denver, CO 80218-1234

Mailing Address7951 E Maplewood Ave Ste 350Greenwood Village, CO 80111-4758 · (303) 930-7895 · Fax (832) 601-6018

Phone(303) 388-4876

Fax(303) 285-5097

Sole ProprietorNo

Medical School CMSUniversity Of Maryland School Of MedicineGraduated 1985

Enumeration DateDecember 6, 2005

Last NPPES UpdateFebruary 17, 20253 updates tracked since enumeration

NPPES CertifiedFebruary 17, 2025

✔ NPI 1316921976 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in CO · DR.0027525

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

1800 WILLIAMS ST, Denver, CO 80218

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Other Identifiers 1

MedicaidO1275254CO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Sunflower Health Plan, Ambetter Health, Ambetter Health of Delaware 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

Dr. Allen L Cohn 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 ID5597716365

PECOS Enrollment IDI20100120000394

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

Medicare enrollment records show Allen Cohn reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rocky Mountain Cancer Centers LLP

10 mi

Hematology & Oncology

7951 E MAPLEWOOD AVE STE 350
Greenwood Village, CO 80111

Reassigned Medicare billing, Colorado enrollment
157 clinicians in this Medicare group

NPI 1518941186 (303) 930-7800

Yampa Valley Medical Center

110 mi

Multi-Specialty

1100 CENTRAL PARK DR STE 1000
Steamboat Springs, CO 80487

Reassigned Medicare billing, Colorado enrollment
181 clinicians in this Medicare group

NPI 1437765732 (970) 879-3738

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 41

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.

Injection, lanreotide, 1 mg J1930

Lanreotide is a medication given through an injection. It's used to treat certain hormonal disorders when the body produces excess growth hormones. It works by reducing the amount of growth hormones your body makes.

4,230 services16 patients

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

3,350 services38 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.

1,323 services282 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

1,121 services177 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

1,108 services182 patients

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

1,010 services25 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.

750 services248 patients

Injection, palonosetron hcl, 25 mcg J2469

Palonosetron HCL is an injection used to prevent nausea and vomiting caused by chemotherapy. It works by blocking a natural substance (serotonin) in the body that can cause vomiting. This helps improve your comfort during cancer treatment.

610 services14 patients

Carcinoembryonic antigen (cea) protein level 82378

Carcinoembryonic Antigen (CEA) protein level is a blood test often used in cancer care. It measures the amount of CEA protein in your blood, which can increase in cases of certain types of cancer. It's used to monitor treatment progress and check for cancer recurrence.

442 services98 patients

Injection, granisetron hydrochloride, 100 mcg J1626

Granisetron hydrochloride is an anti-nausea medication given by injection. It helps prevent nausea and vomiting often caused by cancer treatments like chemotherapy. Its dosage is measured in micrograms (mcg).

320 services11 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.

221 services51 patients

Injection of additional new drug or substance into vein 96375

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

121 services29 patients

Piflufolastat f-18, diagnostic, 1 millicurie A9595

Piflufolastat F-18 is a radioactive diagnostic agent used in PET scans. It helps visualize certain cells in your body, aiding doctors in diagnosing specific conditions. This service involves injecting 1 millicurie of the agent into your body.

117 services13 patients

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

A nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.

111 services103 patients

Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less 96367

This procedure involves injecting fluids or medication directly into your vein. It's used for treatment, prevention, or diagnosis. An additional sequential infusion may be given within an hour if needed. This helps to ensure the medicine is distributed effectively in your body.

108 services27 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

96 services40 patients

Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries A9552

Fluorodeoxyglucose F-18 FDG is a radioactive drug used in PET scans. It helps doctors see how your tissues and organs are functioning. The drug is given in a specific dose, up to 45 millicuries, depending on your body size and the type of scan.

92 services84 patients

Reticulated (young) platelet measurement 85055

Reticulated (young) platelet measurement is a blood test that helps determine the number of new platelets your body is producing. It's useful for diagnosing and monitoring conditions affecting platelet production, like anemia or chemotherapy effects.

91 services37 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

90 services36 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.

90 services42 patients

Infusion, normal saline solution , 1000 cc J7030

An infusion of normal saline solution, 1000 cc, is a common medical procedure. It involves introducing a saltwater solution into your bloodstream via an intravenous (IV) line. This helps to hydrate your body, correct electrolyte imbalances, and deliver medications if needed.

87 services26 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test 85027

A complete blood cell count (CBC) is an automated test that measures different components of the blood, including red cells, white cells, and platelets. It helps assess overall health, detect disorders like anemia or infection, and monitor medical treatments.

86 services27 patients

Ferritin (blood protein) level 82728

A Ferritin level test measures the amount of ferritin, a protein that stores iron, in your blood. It helps determine how much iron your body is storing. If levels are low, it may indicate iron deficiency, while high levels could signify conditions like iron overload.

82 services42 patients

Iron level 83540

An iron level test measures the amount of iron in your blood. Iron is crucial for producing hemoglobin, a protein in red blood cells that carries oxygen throughout your body. This test helps identify iron deficiencies or excesses, which can lead to conditions like anemia or hemochromatosis.

82 services42 patients

Iron binding capacity 83550

Iron binding capacity is a blood test that measures how well your body can bind and transport iron. This helps your healthcare provider assess if your body has too little or too much iron, which can indicate certain health conditions.

82 services42 patients

Psa (prostate specific antigen) measurement, total 84153

PSA measurement is a simple blood test that checks for a specific protein produced by your body. High levels could indicate a health issue that needs further investigation. It's often used to monitor general wellness and is part of routine health screening.

80 services18 patients

Thyroxine (thyroid chemical), free 84439

The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.

80 services32 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

73 services32 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

56 services26 patients

Infusion into a vein for therapy, prevention, or diagnosis, each additional hour 96366

This procedure involves delivering medication, fluids, or nutrients directly into your vein. This is done to treat, prevent, or diagnose various conditions. Each additional hour refers to the extended time you may need to receive these substances for optimal results.

53 services16 patients

Infusion into a vein for hydration, 31-60 minutes 96360

This is a procedure where a sterile solution is administered into your vein to help restore body fluid balance. It typically lasts between 31-60 minutes. It's a safe, common treatment for dehydration or to deliver medication.

47 services19 patients

Magnesium level 83735

A magnesium level test is a simple blood test that measures the amount of magnesium in your body. Magnesium is a crucial mineral that helps your nerves, muscles, and heart function properly. The test can help detect health conditions like kidney disease or malnutrition.

45 services11 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.

41 services41 patients

Infusion into a vein for hydration, each additional hour 96361

This procedure involves delivering fluids directly into your vein to keep your body hydrated. It is typically done when oral hydration is insufficient. Each additional hour means more fluid is infused to ensure adequate hydration.

40 services14 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

33 services30 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

32 services30 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

27 services16 patients

Cyanocobalamin (vitamin b-12) level 82607

A Cyanocobalamin (Vitamin B-12) level test is a blood test that checks the amount of Vitamin B-12 in your body. This vitamin is vital for nerve function and the creation of red blood cells. Low or high levels could indicate a potential health issue.

23 services20 patients

Gallium ga-68, dotatate, diagnostic, 0.1 millicurie A9587

Gallium Ga-68 Dotatate is a diagnostic tool used in PET scans to help detect certain types of tumors. It involves injecting a small amount of radioactive material into the body. This helps doctors see how tissues and organs are functioning.

23 services22 patients

Nuclear medicine study whole body with ct scan 78816

A Nuclear Medicine Study with a CT Scan is a diagnostic procedure. It uses a small amount of radioactive substance and a CT scan to create detailed images of your body. These images help doctors diagnose, monitor, and treat various conditions.

17 services17 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

13 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80218 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

$174.82 typical visit price

range $58.06 – $174.82

Typical copayment $43.70 (range $14.51 – $43.70)

Most-billed visit code 99205

Established Patient

$102.03 typical visit price

range $18.88 – $142.79

Typical copayment $25.50 (range $4.72 – $35.69)

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.

97.58/100

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

Scored through an Alternative Payment Model

Quality

86.53

Promoting Interoperability

100

Improvement Activities

Reported Quality Measures

e-Prescribing

93%274 patients3/55-star benchmark: 100%

Provide Patients Electronic Access to Their Health Information

94%362 patients4/55-star benchmark: 100%

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 9

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

Parenteral nutrition solution, not otherwise specified, 10 grams lipids B4185

Other-Enteral and Parenteral · category OB005N

1 supplier32 claims568 services$11.22 avg. paid by Medicare

Parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements and vitamins, including preparation, any strength, 74 to 100 grams of protein - premix B4197

Other-Enteral and Parenteral · category OB005N

1 supplier15 claims98 services$280.03 avg. paid by Medicare

Parenteral nutrition supply kit; premix, per day B4220

Other-Enteral and Parenteral · category OB005N

1 supplier34 claims232 services$8.03 avg. paid by Medicare

Parenteral nutrition administration kit, per day B4224

Other-Enteral and Parenteral · category OB005N

1 supplier34 claims232 services$25.07 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

1 supplier12 claims12 services$15.35 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

2 suppliers13 claims13 services$72.76 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 12

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

DR. MICHAEL BRIAN MARIS MD

Internal Medicine (Hematology & Oncology)

1800 WILLIAMS ST, STE 300
DENVER, CO 80218

Denver County (720) 754-4800

TRUDY M RUBINSON NP

Nurse Practitioner

1800 WILLIAMS ST, SUITE 300
DENVER, CO 80218

Denver County (720) 754-4800

ANNA C MAYER

Physician Assistant

1800 WILLIAMS ST, SUITE 200
DENVER, CO 80218

Denver County (303) 388-8246

GERALD STEVEN FALCHOOK MD

Internal Medicine (Medical Oncology)

1800 WILLIAMS ST, #300
DENVER, CO 80218

Denver County (720) 754-2610

MONICA I SCHLATTER NP

Nurse Practitioner

1800 WILLIAMS ST, SUITE 300
DENVER, CO 80218

Denver County (720) 754-4800

TRACEY WAY

Nurse Practitioner (Family)

1800 WILLIAMS ST, 300
DENVER, CO 80218

Denver County (720) 754-2610

MRS. JULIE A ELLIOTT PA

Physician Assistant

1800 WILLIAMS ST, SUITE 100
DENVER, CO 80218

Denver County (303) 388-4876

LINDSAY BRAMWELL RN, MSN, CNS

Clinical Nurse Specialist

1800 WILLIAMS ST, #300
DENVER, CO 80218

Denver County (720) 754-2610

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 Allen Cohn's NPI number?

The NPI number for Allen Cohn is 1316921976. It was assigned to this individual provider in the NPPES registry on December 6, 2005.

Where is Allen Cohn located?

Allen Cohn practices at 1800 Williams St Suite 200, Denver, CO 80218. The listed phone number is (303) 388-4876.

What is Allen Cohn's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Allen Cohn enrolled in Medicare?

Yes. Allen Cohn 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 Allen Cohn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Allen Cohn reassigns Medicare benefits to 2 organizations: Rocky Mountain Cancer Centers LLP (Greenwood Village, CO) and Yampa Valley Medical Center (Steamboat Springs, CO). 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 Allen Cohn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Allen Cohn accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Select Health and UnitedHealthcare list Allen Cohn 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 Allen Cohn was last updated on February 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.