2026 NPPES data Family Medicine Physician NPI 1568461176 MD
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GAYATHRI RAMAN, MD

Family Medicine Physician in CHESTERFIELD, Missouri. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
2K
Medicare Part D claims · 134 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

GAYATHRI RAMAN, MD filed 1,813 Medicare Part D claims in 2023 as a Family Medicine Physician in CHESTERFIELD, Missouri, prescribing 82% generic.

2K
Part D claims, 2023
82%
generic prescribing

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

GAYATHRI RAMAN, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,813 Top 17% higher than 83% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). This entry sits in this band. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

GAYATHRI RAMAN, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about GAYATHRI RAMAN, MD?

Quality data not reported

NPI registry status

Active

Issued 07/15/2005

NPI 1568461176

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

1,813 47% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Missouri

How Family Medicine Physician compares to other specialties among Missouri providers

Missouri providers

Family Medicine Physician share within Missouri

1. Family Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Medicine Physician share within Missouri

Specialty board-certification context

Estimated specialty board-certified rate — Family Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

GAYATHRI RAMAN, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 16216 BAXTER RD STE 325, CHESTERFIELD, MO, 63017, with a listed phone of (636) 777-8058. NPI 1568461176 was issued on 07/15/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RAMAN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,813 prescription claims written by this provider, covering 134 Medicare beneficiaries and totaling roughly $232K in drug spend, split 18% brand-name and 82% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

16216 BAXTER RD STE 325
CHESTERFIELD, MO 63017

Provider Details

NPI 1568461176
Specialty Family Medicine Physician
Credentials MD
Gender Female
NPI Issued 07/15/2005

Brand vs generic prescribing mix · Typical

GAYATHRI RAMAN, MD — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 1,813 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,813
Total Claims
$232K
Total Drug Cost
134
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,072
Total Day Supply
114,973
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$188K
Generic Drug Cost
$42K
Antibiotic Claims
152

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
1.02
Gender Split
73% female / 27% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What GAYATHRI RAMAN, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Methylprednisolone
102
Levothyroxine Sodium
87
Liothyronine Sodium
76
Alprazolam
71
Mounjaro
Tirzepatide
58
Atorvastatin Calcium
54
Citalopram Hbr
Citalopram Hydrobromide
39
Synthroid
Levothyroxine Sodium
39
Azithromycin
38
Lisinopril
35

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Family Medicine Physician Overview

How GAYATHRI RAMAN, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

GAYATHRI RAMAN, MD's 1,813 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Missouri

Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as RAMAN.

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GAYATHRI RAMAN, MD's specialty?
GAYATHRI RAMAN, MD specializes in Family Medicine Physician and practices in CHESTERFIELD, Missouri. Credentials: MD.
How much does GAYATHRI RAMAN, MD prescribe under Medicare Part D?
In 2023, GAYATHRI RAMAN, MD wrote 1,813 Medicare Part D claims totaling $232K in drug costs for 134 beneficiaries.
Where is GAYATHRI RAMAN, MD located?
GAYATHRI RAMAN, MD is located at 16216 BAXTER RD STE 325, CHESTERFIELD, MO, 63017. Phone: (636) 777-8058.
What is GAYATHRI RAMAN, MD's NPI number?
GAYATHRI RAMAN, MD's National Provider Identifier (NPI) is 1568461176, issued on 07/15/2005.
Does GAYATHRI RAMAN, MD prescribe more brand-name or generic drugs?
GAYATHRI RAMAN, MD's prescribing is 18% brand-name and 82% generic drugs by claim count, with $188K in brand drug costs.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does GAYATHRI RAMAN, MD prescribe most often?
Based on 2023 Medicare Part D data, GAYATHRI RAMAN, MD's most frequently prescribed drugs include Methylprednisolone, Levothyroxine Sodium, Liothyronine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GAYATHRI RAMAN, MD accept Medicare?
GAYATHRI RAMAN, MD appears in CMS Medicare data with 1,813 Part D claims and 134 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GAYATHRI RAMAN, MD's credentials?
GAYATHRI RAMAN, MD's NPI is 1568461176 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology